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下面是顾客管理模块，由三个脚本组成：
example.customer.1.php (验证和更新顾客）
example.customer.2.php（顾客输入&form&;）
example.customer.3.php（顾客回执页面）
example.customer.1.php
&?php
&&// This script validates customer data entered into
&&// example.customer.2.php.
&&// If validation succeeds, it INSERTs or UPDATEs
&&// a customer and redire if it
&&// fails, it creates error messages and these are later
&&// displayed by example.customer.2.php.
&&include 'include.inc';
&&set_error_handler(&errorHandler"
&&// Initialize a session
&&session_start();
&&// Register an error array - just in case!
&&if (!session_is_registered(&errors")
& &&&session_register(&errors"
&&// Clear any errors that might have been
&&// found previously
&&$errors = array();
&&// Set up a $formVars array with the POST variables
&&// and register with the session.
&&if (!session_is_registered(&formVars")
& &&&session_register(&formVars"
&&foreach($HTTP_POST_VARS as $varname =&; $value)
& && &$formVars[$varname] = trim(clean($value, 50));
&&// Validate the firstName
&&if (empty($formVars[&firstName&]))
& && &// First name cannot be a null string
& && &$errors[&firstName&] =
& && && & &The first name field cannot be blank.&;
&&elseif (!eregi(&^[a-z'-]*$&, $formVars[&firstName&]))
& && &// First name cannot contain white space
& && &$errors[&firstName&] =
& && &&The first name can only contain alphabetic & .
& && && &&characters or \&-\& or \&'\&&;
&&elseif (strlen($formVars[&firstName&]) &; 50)
& && &$errors[&firstName&] =
& && &&The first name can be no longer than 50 & .
& && && &&characters&;
&&// Validate the Surname
&&if (empty($formVars[&surname&]))
& && &// the user's surname cannot be a null string
& && &$errors[&surname&] =
& && && & &The surname field cannot be blank.&;
&&elseif (strlen($formVars[&surname&]) &; 50)
& && &$errors[&surname&] =
& && && & &The surname can be no longer than 50 & .
& && && & &characters&;
&&// Validate the Address
&&if (empty($formVars[&address1&]) &&
& && &empty($formVars[&address2&]) &&
& && &empty($formVars[&address3&]))
& && &// all the fields of the address cannot be null
& && &$errors[&address&] =
& && && & &You must supply at least one address line.&;
& && &if (strlen($formVars[&address1&]) &; 50)
& && &$errors[&address1&] =
& && && & &The address line 1 can be no longer & .
& && && & &than 50 characters&;
& && &if (strlen($formVars[&address2&]) &; 50)
& && &$errors[&address2&] =
& && && & &The address line 2 can be no longer & .
& && && & &than 50 characters&;
& && &if (strlen($formVars[&address3&]) &; 50)
& && &$errors[&address3&] =
& && && & &The address line 3 can be no longer & .
& && && & &than 50 characters&;
&&// Validate the user's Initial
&&if (!empty($formVars[&initial&]) &&
& && &!eregi(&^[a-z]{1}$&, $formVars[&initial&]))
& && &// If there is a middle initial, it must be
& && &// one character in length
& && &$errors[&initial&] =
& && && &&The initial field must be empty or one & .
& && && &&character in length.&;
&&// Validate the City
&&if (empty($formVars[&city&]))
& && &// the user's city cannot be a null string
& && &$errors[&city&] = &You must supply a city.&;
&&elseif (strlen($formVars[&city&]) &; 20)
& && &$errors[&city&] =
& && &&&&The city can be no longer than 20 characters&;
&&// Validate State - any string less than 21 characters
&&if (strlen($formVars[&state&]) &; 20)
& && &$errors[&state&] =
& && && &&The state can be no longer than 20 characters&;
&&// Validate Zipcode
&&if (!ereg(&^([0-9]{4,5})$&, $formVars[&zipcode&]))
& && &$errors[&zipcode&] =
& && && &&The zipcode must be 4 or 5 digits in length&;
&&// Validate Country
&&if (strlen($formVars[&country&]) &; 20)
& && &$errors[&country&] =
& && && &&The country can be no longer than 20 characters&;
&&// Phone is optional, but if it is entered it must have
&&//&&correct format
&&$validPhoneExpr =
& &&&&^([0-9]{2,3}[ ]?)?[0-9]{4}[ ]?[0-9]{4}$&;
&&if (!empty($formVars[&phone&]) &&
& && &!ereg($validPhoneExpr, $formVars[&phone&]))
& && &$errors[&phone&] =
& && &&&&The phone number must be 8 digits in length, & .
& && &&&&with an optional 2 or 3 digit area code&;
&&// Fax is optional, but if it is entered it must
&&// have correct format
&&if (!empty($formVars[&fax&]) &&
& && &!ereg($validPhoneExpr, $formVars[&fax&]))
& && &$errors[&fax&] =
& && &&&&The fax number must be 8 digits in length, with & .
& && &&&&an optional 2 or 3 digit area code&;
&&// Validate Date of Birth
&&if (empty($formVars[&dob&]))
& && &// the user's date of birth cannot be a null string
& && &$errors[&dob&] = &You must supply a date of birth.&;
&&elseif (!ereg(&^([0-9]{2})/([0-9]{2})/([0-9]{4})$&,
& && && & $formVars[&dob&], $parts))
& && &// Check the format
& && &$errors[&dob&] =
& && &&&&The date of birth is not a valid date in the & .
& && &&&&format DD/MM/YYYY&;&&
&&elseif (!checkdate($parts[2],$parts[1],$parts[3]))
& && &$errors[&dob&] =
& && && &&The date of birth is invalid. Please check & .
& && && &&that the month is between 1 and 12, and the & .
& && && &&day is valid for that month.&;
&&elseif (intval($parts[3]) & 1890)
& && &// Make sure that the user has a reasonable birth year
& && &$errors[&dob&] =
& && && &&You must be alive to use this service.&;
& & // Check whether the user is 18 years old.
& & // If all the following are NOT true, then report
& & // an error.
& & // Were they born more than 19 years ago?
& & (!((intval($parts[3]) & (intval(date(&Y" - 19))) ||
& & // No, so were they born exactly 18 years ago, and
& & // has the month they were born in passed?
& & (intval($parts[3]) == (intval(date(&Y") - 1 &&
& & (intval($parts[2]) & intval(date(&m"))) ||
& & // No, so were they born exactly 18 years ago in this
& & // month, and was the day today or earlier in the month?
& & (intval($parts[3]) == (intval(date(&Y") - 1 &&
& & (intval($parts[2]) ==&&intval(date(&m")) &&
& & (intval($parts[1]) &= intval(date(&d&))))))
& && &$errors[&dob&] =
& && && & &You must be 18+ years of age to use this &.
& && && & &service.&;
&&// Only validate email if this is an INSERT
&&if (!session_is_registered(&loginUsername&))
& &&&// Check syntax
& &&&$validEmailExpr =
& && && &&^[0-9a-z~!#$%&_-]([.]?[0-9a-z~!#$%&_-])*& .
& && && &&@[0-9a-z~!#$%&_-]([.]?[0-9a-z~!#$%&_-])*$&;
& &&&// Extract the domain of the email address
& &&&$maildomain = substr(strstr($formVars[&email&], '@'), 1);
& &&&if (empty($formVars[&email&]))
& && && &// the user's email cannot be a null string
& && && &$errors[&email&] =
& && && && &&You must supply an email address.&;
& &&&elseif (!eregi($validEmailExpr, $formVars[&email&]))
& && && &// The email must match the above regular
& && && &// expression& && && &
& && && &$errors[&email&] =
& && && && &&The email address must be in the & .
& && && && &&name@domain format.&;
& &&&elseif (strlen($formVars[&email&]) &; 50)
& && && &// The length cannot exceed 50 characters
& && && &$errors[&email&] =
& && && && &&The email address can be no longer than & .
& && && && &&50 characters.&;
& &&&elseif (!( getmxrr($maildomain, $temp) || gethostbyname($maildomain) != $maildomain ))
& && && &// Can email be sent to this domain?
& && && &$errors[&email&] =
& && && && &&The domain does not exist.&;
& && &&&// Check if the email address is already in use in
& && &&&//&&the winestore
& && &&&if (!($connection = @ mysql_pconnect($hostName,
& && && && && && && && && && && && && && && &$username,
& && && && && && && && && && && && && && && &$password)))
& && && &&&showerror();
& && &&&if (!mysql_select_db($databaseName, $connection))
& && && &&&showerror();
& && &&&$query = &SELECT * FROM users
& && && && && && &WHERE user_name = '& .
& && && && && && &$formVars[&email&] . &'&;
& && &&&if (!($result = @ mysql_query ($query,
& && && && && && && && && && && && && &$connection)))
& && && &&&showerror();
& && &&&// Is it taken?
& && &&&if (mysql_num_rows($result) == 1)
& && && &&&$errors[&email&] =
& && && && &&&&A customer already exists with this & .
& && && && &&&&login name.&;
&&// Only validate password if this is an INSERT
&&// Validate password - between 6 and 8 characters
&&if (!session_is_registered(&loginUsername&) &&
& &&&(strlen($formVars[&loginPassword&]) & 6 ||
& && &strlen($formVars[&loginPassword&] &; ))
& && &$errors[&loginPassword&] =
& && && &&The password must be between 6 and 8 & .
& && && &&characters in length&;
&&// Now the script has finished the validation,
&&// check if there were any errors
&&if (count($errors) &; 0)
& && &// There are errors.&&Relocate back to the client form
& && &header(&Location: example.customer.2.php&);
&&// If we made it here, then the data is valid
&&if (!isset($connection))
& &&&if (!($connection = @ mysql_pconnect($hostName,
& && && && && && && && && && && && && && &$username,
& && && && && && && && && && && && && && &$password)))
& && &&&showerror();
& &&&if (!mysql_select_db($databaseName, $connection))
& && &&&showerror();
&&// Reassemble the date of birth into database format
&&$dob = & \&$parts[3]-$parts[2]-$parts[1]\&&;
&&// Is this an update?
&&if (session_is_registered(&loginUsername&))
& &&&$custID = getCustomerID($loginUsername, $connection);
& &&&$query = &UPDATE customer SET &.
& &&&&title = \&& . $formVars[&title&] . &\&, & .
& &&&&surname = \&& . $formVars[&surname&] . &\&, & .
& &&&&firstname = \&& . $formVars[&firstName&] . &\&, & .
& &&&&initial = \&& . $formVars[&initial&] . &\&, & .
& &&&&addressline1 = \&& . $formVars[&address1&] . &\&, & .
& &&&&addressline2 = \&& . $formVars[&address2&] . &\&, & .
& &&&&addressline3 = \&& . $formVars[&address3&] . &\&, & .
& &&&&city = \&& . $formVars[&city&] . &\&, & .
& &&&&state = \&& . $formVars[&state&] . &\&, & .
& &&&&zipcode = \&& . $formVars[&zipcode&] . &\&, & .
& &&&&country = \&& . $formVars[&country&]. &\&, & .
& &&&&phone = \&& . $formVars[&phone&] . &\&, & .
& &&&&fax = \&& . $formVars[&fax&] . &\&, & .
& &&&&birth_date = & . $dob .
& &&&& WHERE cust_id = $custID&;
& &&&$query = &INSERT INTO customer VALUES (NULL, & .
& && && && &&&&\&& . $formVars[&surname&] . &\&, & .
& && && && &&&&\&& . $formVars[&firstName&] . &\&, & .& && && && && && &&&
& && && && &&&&\&& . $formVars[&initial&] . &\&, & .
& && && && &&&&\&& . $formVars[&title&] . &\&, & .
& && && && &&&&\&& . $formVars[&address1&] . &\&, & .
& && && && &&&&\&& . $formVars[&address2&] . &\&, & .
& && && && &&&&\&& . $formVars[&address3&] . &\&, & .
& && && && &&&&\&& . $formVars[&city&] . &\&, & .
& && && && &&&&\&& . $formVars[&state&] . &\&, & .
& && && && &&&&\&& . $formVars[&zipcode&] . &\&, & .
& && && && &&&&\&& . $formVars[&country&] . &\&, & .
& && && && &&&&\&& . $formVars[&phone&] . &\&, & .
& && && && &&&&\&& . $formVars[&fax&] . &\&, & .
& && && && &&&&\&& . $formVars[&email&] . &\&, & .
& && && && &&&$dob . &, & .
& && && && &&&0 . &)&;
&&// Run the query on the customer table
&&if (!(@ mysql_query ($query, $connection)))
& &&&showerror();& &
&&// If this was an INSERT, we need to INSERT
&&// also into the users table
&&if (!session_is_registered(&loginUsername&))
& &&&// Get the customer id that was created
& &&&$custID = @ mysql_insert_id($connection);
& &&&// Use the first two characters of the
& &&&// email as a salt for the password
& &&&$salt = substr($formVars[&email&], 0, 2);
& &&&// Create the encrypted password
& &&&$stored_password =
& && && &crypt($formVars[&loginPassword&], $salt);
& &&&// Insert a new user into the user table
& &&&$query = &INSERT INTO users
& && && && && &SET cust_id = $custID,
& && && && && && &password = '$stored_password',
& && && && && && &user_name = '& . $formVars[&email&] . &'&;
& &&&if (!($result = @ mysql_query ($query, $connection)))
& && &&&showerror();& && && && && && && && && && && &
& &&&// Log the user into their new account
& &&&session_register(&loginUsername&);
& &&&$loginUsername = $formVars[&email&];
&&// Clear the formVars so a future &form&; is blank
&&session_unregister(&formVars&);
&&session_unregister(&errors&);
&&// Now show the customer receipt
&&header(&Location: example.customer.3.php?custID=$custID&);
example.customer.2.php
&?php
&&// This script shows the user a customer &form&;.
&&// It can be used both for INSERTing a new customer and
&&// for UPDATE-ing an existing customer. If the customer
&&// is logged in, then it is an UPDATE; otherwise, an
&&// INSERT.
&&// The script also shows error messages above widgets
&&// that co errors are generated
&&// by example.customer.1.php
&&include 'include.inc';
&&set_error_handler(&errorHandler&);
&&// Show an error in a red font
&&function fieldError($fieldName, $errors)
& & if (isset($errors[$fieldName]))
& && & echo &&font color=\&red\&&;& .
& && && &&&$errors[$fieldName] .
& && && &&&&&/font&;&br&;&;
&&// Connect to a session
&&session_start();
&&// Is the user logged in and were there no errors from a previous
&&// validation?&&If so, look up the customer for editing
&&if (session_is_registered(&loginUsername&) && empty($errors))
& &&&if (!($connection = @ mysql_pconnect($hostName,
& && && && && && && && && && && && && &&&$username,
& && && && && && && && && && && && && &&&$password)))
& && &&&showerror();
& &&&if (!mysql_select_db($databaseName, $connection))
& && &&&showerror();
& &&&$custID = getCustomerID($loginUsername, $connection);
& &&&$query = &SELECT * FROM customer
& && && && && &WHERE cust_id = & . $custID;
& &&&if (!($result = @ mysql_query($query, $connection)))
& && &&&showerror();
& &&&$row = mysql_fetch_array($result);
& &&&// Reset $formVars, since we're loading from
& &&&// the customer table
& &&&$formVars = array();
& &&&// Reset the errors
& &&&$errors = array();
& &&&// Load all the form variables with customer data
& &&&$formVars[&title&] = $row[&title&];
& &&&$formVars[&surname&] = $row[&surname&];
& &&&$formVars[&firstName&] = $row[&firstname&];
& &&&$formVars[&initial&] = $row[&initial&];
& &&&$formVars[&address1&] = $row[&addressline1&];
& &&&$formVars[&address2&] = $row[&addressline2&];
& &&&$formVars[&address3&] = $row[&addressline3&];
& &&&$formVars[&city&] = $row[&city&];
& &&&$formVars[&state&] = $row[&state&];
& &&&$formVars[&zipcode&] = $row[&zipcode&];
& &&&$formVars[&country&] = $row[&country&];
& &&&$formVars[&phone&] = $row[&phone&];
& &&&$formVars[&fax&] = $row[&fax&];
& &&&$formVars[&email&] = $row[&email&];
& &&&$formVars[&dob&] = $row[&birth_date&];
& &&&$formVars[&dob&] = substr($formVars[&dob&], 8, 2) . &/& .
& && && && && && && && &substr($formVars[&dob&], 5, 2) . &/& .& &
& && && && && && && && &substr($formVars[&dob&], 0, 4);
&!DOCTYPE HTML PUBLIC
& &&-//W3C//DTD HTML 4.0 Transitional//EN&
& &&http://www.w3.org/TR/html4/loose.dtd& &;
&head&;&title&;Customer Details&/title&;&/head&;
&body bgcolor=&white&&;&&
&&// Show the user login status
&&showLogin();
&form method=&post& action=&example.customer.1.php&&;
&h1&;Customer Details&/h1&;
&&// Display any messages to the user
&&showMessage();
&&// Show meaningful instructions for UPDATE or INSERT
&&if (session_is_registered(&loginUsername&))
& &&&echo &&h3&lease amend your details below as required. Fields shown in &font color=\&red\&&;red&/font&; are mandatory.&/h3&;&;
& &&&echo &&h3&lease fill in the details below to join. Fields shown in &font color=\&red\&&;red&/font&; are mandatory.&/h3&;&;
&col span=&1& align=&right&&;
& & &tr&;&td&;&font color=&red&&;Title:&/font&;&/td&;
& &&td&;&select name=&title&&;
& && & &option &?if ($formVars[&title&]==&Mr&) echo &selected&;?&;&;Mr
& && & &option &?if ($formVars[&title&]==&Mrs&) echo &selected&;?&;&;Mrs
& && & &option &?if ($formVars[&title&]==&Ms&) echo &selected&;?&;&;Ms
& && & &option &?if ($formVars[&title&]==&Dr&) echo &selected&;?&;&;Dr
& && & &/select&;&br&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;First name:&/font&;&/td&;
& &&td&;&? echo fieldError(&firstName&, $errors); ?&;
& && & &input type=&text& name=&firstName&
& && &value=&&? echo $formVars[&firstName&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;Surname:&/font&;&/td&;
& &&td&;&? echo fieldError(&surname&, $errors); ?&;
& && & &input type=&text& name=&surname&
& && &value=&&? echo $formVars[&surname&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;Initial: &/td&;
& &&td&;&? echo fieldError(&initial&, $errors); ?&;
& && & &input type=&text& name=&initial&
& && &value=&&? echo $formVars[&initial&]; ?&;& size=1&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;Address:&/font&;&/td&;
& &&td&;&? echo fieldError(&address&, $errors); ?&;
& && & &? echo fieldError(&address1&, $errors); ?&;
& && & &input type=&text& name=&address1&
& && &value=&&? echo $formVars[&address1&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;&/td&;
& &&td&;&? echo fieldError(&address2&, $errors); ?&;
& && & &input type=&text& name=&address2&
& && &value=&&? echo $formVars[&address2&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;&/td&;
& &&td&;&? echo fieldError(&address3&, $errors); ?&;
& && & &input type=&text& name=&address3&
& && &value=&&? echo $formVars[&address3&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;City:&/font&;&/td&;
& &&td&;&? echo fieldError(&city&, $errors); ?&;
& && & &input type=&text& name=&city&
& && &value=&&? echo $formVars[&city&]; ?&;& size=20&;&/td&;
& & &/tr&;
& & &tr&;&td&;State: &/td&;
& & &td&;&? echo fieldError(&state&, $errors); ?&;
& &&input type=&text& name=&state&
& && & value=&&? echo $formVars[&state&]; ?&;& size=20&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;Zipcode:&/font&;&/td&;
& & &td&;&? echo fieldError(&zipcode&, $errors); ?&;
& &&input type=&text& name=&zipcode&
& && && &value=&&? echo $formVars[&zipcode&]; ?&;& size=5&;&/td&;
& & &/tr&;
& & &tr&;&td&;Country: &/td&;
& &&td&;&? echo fieldError(&country&, $errors); ?&;
& && & &select name=&country&&;
& && &&option &?if ($formVars[&country&]==&Australia&) echo &selected&;?&;&;
& && && & Australia
& && &&option &?if ($formVars[&country&]==&United States&) echo &selected&;?&;&;
& && && & United States
& && &&option &?if ($formVars[&country&]==&Zimbabwe&) echo &selected&;?&;&;
& && && & Zimbabwe
& && & &/select&;&/td&;
& & &/tr&;
& & &tr&;&td&;Telephone: &/td&;
& &&td&;&? echo fieldError(&phone&, $errors); ?&;
& &&input type=&text& name=&phone&
& && & value=&&? echo $formVars[&phone&]; ?&;& size=15&;&/td&;
& & &/tr&;
& & &tr&;&td&;Fax: &/td&;
& &&td&;&? echo fieldError(&fax&, $errors); ?&;
& && & &input type=&text& name=&fax&
& && &value=&&? echo $formVars[&fax&]; ?&;& size=15&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&;Date of birth (dd/mm/yyyy):&/font&; &/td&;
& &&td&;&? echo fieldError(&dob&, $errors); ?&;
& && & &input type=&text& name=&dob&
& && &value=&&? echo $formVars[&dob&]; ?&;& size=10&;&/td&;
& & &/tr&;
&&// Only show the username/email and password widgets to new users
&&if (!session_is_registered(&loginUsername&))
& & &tr&;&td&;&font color=&red&&;Email/username:&/font&;&/td&;
& &&td&;&? echo fieldError(&email&, $errors); ?&;
& && & &input type=&text& name=&email&
& && &value=&&? echo $formVars[&email&]; ?&;& size=50&;&/td&;
& & &/tr&;
& & &tr&;&td&;&font color=&red&&assword:&/font&;&/td&;
& &&td&;&? echo fieldError(&loginPassword&, $errors); ?&;
& && & &input type=&password& name=&loginPassword&
& && &value=&&? echo $formVars[&loginPassword&]; ?&;& size=8&;&/td&;
& & &/tr&;
& &&td&;&input type=&submit& value=&Submit&&;&/td&;
&br&;&a href=&http://validator.w3.org/check/referer&&;&img
& &&&src=&http://www.w3.org/Icons/valid-html401& height=&31& width=&88&
& && && & align=&right& border=&0& alt=&Valid HTML 4.01!&&;&/a&;
example.customer.3.php
&?php
&&// This script shows the user a receipt for their customer
&&// UPDATE or INSERT. It carries out no database actions and
&&// can be bookmarked.
&&// The user must be logged in to view it.
&&include 'include.inc';
&&set_error_handler(&errorHandler&);
&&// Show the user a customer INSERT or UPDATE receipt
&&function show_HTML_receipt($custID, $connection)
& & $query = &SELECT * FROM customer
& && && && & WHERE cust_id = $custID&;
& & if (!($result = @ mysql_query ($query, $connection)))
& && & showerror();
& & // There is only one matching row
& & $row = @ mysql_fetch_array($result);
& & echo &\n&h1&;Account details for &font color=\&red\&&;& . $row[&email&] . &&/font&;&/h1&;\n&;
& & echo &&p&;&i&lease record your password somewhere safe for future use&/i&;\n&;
& & echo &&p&;Your shipping and billing details are as follows:\n&br&;&b&; & .
& && && &$row[&title&] . & & .
& && && &$row[&firstname&] . & & .
& && && &$row[&initial&] . & & .
& && && &$row[&surname&] . &\n&br&;& .
& && && &$row[&addressline1&] . &\n&;
& & if ($row[&addressline2&] != &&)
& && & echo &\n&br&;& .
& && && && &$row[&addressline2&];
& & if ($row[&addressline3&] != &&)
& && & echo &\n&br&;& .
& && && && &$row[&addressline3&];
& & echo &\n&br&;& .
& && && &$row[&city&] . & & .
& && && &$row[&state&] . & & .
& && && &$row[&zipcode&] . &\n&br&;& .
& && && &$row[&country&] . &&/b&;&br&;\n&;
& & if ($row[&phone&] != &&)
& && & echo &\n&br&;&b&;Telephone: & .
& && && && &$row[&phone&] . &&/b&;&;
& & if ($row[&fax&] != &&)
& && & echo &\n&br&;&b&;Fax: & .
& && && && &$row[&fax&] . &&/b&;&;
& & $row[&dob&] = substr($row[&birth_date&], 8, 2) . &/& .
& && && && && && &substr($row[&birth_date&], 5, 2) . &/& .& &
& && && && && && &substr($row[&birth_date&], 0, 4);
& & echo &\n&br&;&b&;Date of Birth: & .
& && && &$row[&dob&] . &&/b&;\n&br&;&;
&&// Main ----------
& &// Re-establish the existing session
& &session_start();& &
& &// Check if the user is logged in
& &if (!session_is_registered(&loginUsername&))
& && &session_register(&message&);
& && &$message = &You must login to view your customer receipt.&;
& && &header(&Location: example.cart.1.php&);
& &}& && &
& &// Check the correct parameters have been passed
& &if (!isset($custID))
& && &session_register(&message&);
& && &$message = &Incorrect parameters to example.customer.3.php&;
& && &// Redirect the browser back to the calling page
& && &header(&Location: $HTTP_REFERER&);
& &}& && &
& &// Check this customer matches the custID
& &if ($custID != getCustomerID($loginUsername, NULL))
& && &session_register(&message&);
& && &$message = &You can only view your own customer receipt!&;
& && &$custID = getCustomerID($loginUsername, NULL);
& &// Open a connection to the DBMS
& &if (!($connection = @ mysql_pconnect($hostName,
& && && && && && && && && && && && &&&$username,
& && && && && && && && && && && && &&&$password)))
& && &showerror();
& &if (!mysql_select_db($databaseName, $connection))
& && &showerror();
&!DOCTYPE HTML PUBLIC
& &&-//W3C//DTD HTML 4.01 Transitional//EN&
& &&http://www.w3.org/TR/html401/loose.dtd&&;
&&&title&;Hugh and Dave's Online Wines&/title&;
&body bgcolor=&white&&;
& &// Show the user login status
& &showLogin();
& &// Show the user any messages
& &showMessage();
& &// Show the customer confirmation
& &show_HTML_receipt($custID, $connection);
& &// Show buttons
& &echo &&form action=\&example.cart.5.php\& method=\&GET\&&;&;
& &echo &&table&;&;
& &echo &&td&;&input type=\&submit\& name=\&home\& value=\&Home\&&;&/td&;&;
&br&;&a href=&http://validator.w3.org/check/referer&&;&img
& &&&src=&http://www.w3.org/Icons/valid-html401& height=&31& width=&88&
& &&&align=&right& border=&0& alt=&Valid HTML 4.01!&&;&/a&;
请问一个PHPer 要学多久就能够写出这样的代码？（对大众PHPer而言）
& |& & |& & |& & |& 
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[学习] 学PHP要学多久才学出这样的代码
原帖由 &myfavourite& 发表：
请问一个PHPer 要学多久就能够写出这样的代码？（对大众PHPer而言）
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[学习] 学PHP要学多久才学出这样的代码
代码太杂，看不清，很初级的程序，顶多只是面向过程....
没有清析的结构
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[学习] 学PHP要学多久才学出这样的代码
原帖由 &hitty& 发表：
代码太杂，看不清，很初级的程序，顶多只是面向过程....
没有清析的结构
初级？不会吧？我现在只要求能够写出像上面的那样代码已经算不错了
我觉得上面的代码挺清析的，至少我是这样认为的，，
下面是登录脚本：
example.order.1.php
& &// 该脚本管理登录过程
& &//应该在用户示登录才调用该脚本。
& &//如果用户登录，它将重定向回到调用页面。
& &//如果用户示登录，它将显示一个登录&form&;
& &include 'include.inc';
set_error_handler(&errorHandler"
function check_login($loginUsername, $loginPassword)
&&global $
&&global $
&&global $
&&global $hostN
&&global $databaseN
&&global $
&&// Get the two character salt from the
&&// user-name collected from the challenge
&&$salt = substr($loginUsername, 0, 2);
&&// Encrypt the loginPassword collected from
&&// the challenge
&&$crypted_password = crypt($loginPassword, $salt);
&&// Formulate the SQL find the user
&&$query = &SELECT password FROM users
& && && && && &WHERE user_name = '$loginUsername'
& && && && && &AND password = '$crypted_password'&;
&&// Open a connection to the DBMS
&&if (!($connection = @ mysql_pconnect($hostName,
& && && && && && && && && && && && &&&$username,
& && && && && && && && && && && && &&&$password)))
& &&&showerror();
&&if (!mysql_select_db($databaseName, $connection))
& &&&showerror();
&&// Execute the query
&&if (!($result = @ mysql_query($query, $connection)))
& &&&showerror();
&&// exactly one row? then we have found the user
&&if (mysql_num_rows($result) == 1)
& &&&// Register the loginUsername to show the user is logged in
& &&&session_register(&loginUsername"
& &&&// Clear any other session variables
& &&&if (session_is_registered(&errors")
& && &&&// Delete the form errors session variable
& && &&&session_unregister(&errors"
& &&&if (session_is_registered(&formVars")
& && &&&// Delete the formVars session variable
& && &&&session_unregister(&formVars"
& &&&// Do we need to redirect to a calling page?
& &&&if (session_is_registered(&referer")
& &&&{& &&&
& && &&&// Delete the referer session variable
& && &&&session_unregister(&referer"
& && &&&// Then, use it to redirect
& && &&&header(&Location: $referer"
& && &&&header(&Location: example.cart.1.php"
& &&&// Ensure loginUsername is not registered, so the user
& &&&// is not logged in
& &&&if (session_is_registered(&loginUsername&))
& && &&&session_unregister(&loginUsername&);
& &&&// Register an error message
& &&&session_register(&message&);
& &&&$message = &Username or password incorrect. Login failed.&;
& &&&// Show the login page
& &&&// so the user can have another go!
& &&&login_page();
&&}& && &&&
// Function that shows the HTML &form&; that is
// used to collect the user-name and password
function login_page()
&&global $
&!DOCTYPE HTML PUBLIC
& & &-//W3C//DTD HTML 4.0 Transitional//EN&
& & &http://www.w3.org/TR/html4/loose.dtd& &;
& &&&&title&;Winestore Login Page&/title&;
&&&/head&;
&&&body bgcolor=&white&&;
&&// Show login status (should be logged out!)
&&showLogin();
& & &h2&;Winestore Login Page&/h2&;
& & &form method="OST& action=&example.order.1.php&&;
&&// Show messages
&&showMessage();
&&// Generate the login &form&; layout
& & &td&;Enter your username:&/td&;
& & &td&;&input type=&text& size=15
& && && &maxlength=30
& && && &name=&loginUsername&&;&/td&;
&/tr&;& &&&
&tr&;&td&;Enter your password:&/td&;
& & &td&;&input type=&password& size=15
& && && &maxlength=8
& && && &name=&loginPassword&&;&/td&;
& & &td&;&input type=&submit& value=&Log in&&;&/td&;
&br&;&a href=&http://validator.w3.org/check/referer&&;&img
& &&&src=&http://www.w3.org/Icons/valid-html401& height=&31& width=&88&
& &&&align=&right& border=&0& alt=&Valid HTML 4.01!&&;&/a&;
// ------------------
// Initialise the session
session_start();
if (isset($HTTP_POST_VARS[&loginUsername&]))
& &$loginUsername = clean($HTTP_POST_VARS[&loginUsername&], 30);
if (isset($HTTP_POST_VARS[&loginPassword&]))
& &$loginPassword = clean($HTTP_POST_VARS[&loginPassword&], 8 );
// Check if the user is already logged in
if (session_is_registered(&loginUsername&))
&&// If they are, then just bounce them back where
&&// they came from
&&if (session_is_registered(&referer&))
& &&&session_unregister(&referer&);
& &&&header(&Location: $referer&);
& &&&header(&Location: example.cart.1.php&);
// Have they provided only one of a username and password?
if ((empty($HTTP_POST_VARS[&loginUsername&]) &&
& & !empty($HTTP_POST_VARS[&loginPassword&])) ||
& & (!empty($HTTP_POST_VARS[&loginUsername&]) &&
& & empty($HTTP_POST_VARS[&loginPassword&])))
& &&&// Register an error message
& &&&session_register(&message&);
& &&&$message = &Both a username and password must be supplied.&;
// Have they not provided a username/password, or was there an error?
if (!isset($loginUsername) ||
& & !isset($loginPassword) ||
& &&&session_is_registered(&message&))
&&login_page();
&&// They have provided a login. Is it valid?
&&check_login($loginUsername, $loginPassword);
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[学习] 学PHP要学多久才学出这样的代码
里面除了正则对偶来说有点难度
其他都已经不是问题鸟
第一次接触PHP到现在不到两年
近一年前才写了个简单的留言本
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[学习] 学PHP要学多久才学出这样的代码
原帖由 &姜运涛& 发表：
里面除了正则对偶来说有点难度
其他都已经不是问题鸟
第一次接触PHP到现在不到两年
近一年前才写了个简单的留言本
里面的代码并不是说难，难就难在考虑得比较周到，几乎没有Bug可言，我是这样认为的。我学PHP也有一段时间了，不过都是看代码，还没有动手写过代码 ，菜啊
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[学习] 学PHP要学多久才学出这样的代码
其實這個代碼很糟糕的，沒有清晰的設計，沒有很好的數據封裝，混亂的業務邏輯，學PHP如果只要學到這種程度，那還是一開始就不要學的好
不過正則表達式用的還可以
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[学习] 学PHP要学多久才学出这样的代码
感觉有点乱 不过考虑挺全面的
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[学习] 学PHP要学多久才学出这样的代码
不要总是想着我可以做什么
而要总是想着我学了什么
