PHP inventory 2

1 single and double quotation marks
<? PHP
$ Var = 12345;
Echo $ var; // print the value of $ var variable 12345
Echo '$ var'; // print the string '$ var'
Echo "$ Var"; // print the value of $ var variable 12345
?>
No matter what is in single quotes, it is printed as is

2 header Functions
Header ("Location: http://www.baidu.com ");
Headers ("Refresh: 3; url = http://www.baidu.com ");
3 HTTP Verification
<? PHP
$ Username = 'username ';
$ Password = 'Password ';
If (! Isset ($ php_auth_user )){
Header ("www-Authenticate: Basic realm = \" php login verification \"");
Header ("HTTP/1.0 401 unauthorized ");
Echo "Operation aborted \ n ";
Exit;
} Else {
If ($ php_auth_user = $ userame) & ($ php_auth_pw = $ password )){
Print ("You have logged on successfully <br/> ");
} Else {
Print ("Logon Failed <br/> ");
}
}
?>
4 curl
Curl is the abbreviation of client URL library functions and is mainly used for network use. In PhP5, you can open extension = php_curl.dll.
Example:
<? PHP
// Initialize curl
$ CH = curl_init () or die (curl_error ());
// Set URL parameters
Curl_setopt ($ ch, curlopt_url, "http://www.baidu.com/s? WD = PhP5 ");
// Request that curl return data
Curl_setopt ($ ch, curlopt_returntransfer, 1 );
// Execute the request
$ Result = curl_exec ($ ch) or die (curl_error ());
// Obtain the returned result and display it
Echo $ result;
Echo curl_error ($ ch );
// Disable curl
Curl_close ($ ch );
?>
Download remote files
<? PHP
Function curl_download ($ remote, $ local ){
$ CP = curl_init ($ remote );
$ Fp = fopen ($ local, "W ");

Curl_setopt ($ CP, curlopt_file, $ FP );
Curl_setopt ($ CP, curlopt_header, 0 );

Curl_exec ($ CP );
Curl_close ($ CP );
Fclose ($ FP );
}
// Obtain the file from the remote end and save it in the Directory D: \ Software on the local hard disk.
Curl_download ("http://www.skycn.com/downloads/file.zip", "d:/software ");
?>
4. Use the snoopy class
The Snoopy class is an item tree on sourceforge.net and can be easily captured.
<? PHP
Include "Snoopy. Class. php ";
$ Snoopy = new Snoopy;
$ Snoopy-> fetch ("http://bbs.sina.com.cn/index.html ");
$ Line = $ Snoopy-> results;
Print_r ($ line );
?>
Automatic Login
<? PHP
Include_once "Snoopy. Class. php ";
$ Snoopy = new Snoopy;
// The URL you want to submit
$ Submit_url = "http://www.example.org/login/logging.php? Action = login ";
// Some text box parameters in the form
$ Submit_vars ["loginmode"] = "normal ";
$ Submit_vars ["styleid"] = "1 ";
$ Submit_vars ["username"] = "Administrator"; // your Username
$ Submit_vars ["password"] = "12345"; // your password
$ Submit_vars ["loginsubmit"] = "& nbsp; ";
$ Snoopy-> submit ($ submit_url, $ submit_vars );
Print $ Snoopy-> results;
?>