PHP

Example of phpheader function usage (1) Print ""; // The cache file is normally read. ?> Print ""; // adds a unique number to make the browser request again W // print ""; ?>

How php judges whether the wap mobile client is used // If HTTP_X_WAP_PROFILE exists, it must be a mobile device. If (isset ($ _ SERVER ['http _ X_WAP_PROFILE ']) { Return true; } Analysis: By

Difference between mysql and mysqli This article introduces some differences between mysql and mysqli in php. For more information, see.Difference between mysql and mysqli: Mysql and Mysqli (Mysql Improved) are two library functions (or

Usage of the phpob_start () cache function This article introduces the usage of the ob_start () function used for cache control in php. For more information, see.In php, the ob_start () function is used to open the buffer. for example, if

Php multi-threaded function for downloading multiple remote files This article introduces a function implemented in php that can download multiple remote files through multiple threads. For more information, see.Run the following code to

Code example for CodeIgniter to upload images Share a piece of code for CodeIgniter to upload images. for a friend studying the php framework of CodeIgniter, you can make a reference.I used the CodeIgniter Upload class to upload images. I

Php reference (& amp;) symbol details $ A = "ABC "; $ B = & $; Echo $ a; // output here: ABC Echo $ B; // output here: ABC $ B = "EFG "; Echo $ a; // Here, the value of $ a is changed to EFG,

Php multi-thread webpage capture code sharing This article introduces how to use php to capture web page code with multiple threads. For more information, see.In php, you can use Curl to complete various file transfer operations, such as

Do not write at the end of the PHP file? What are the benefits of & amp; gt; // This is B. php Include a. php Session_start (); ?> I have seen that many php files do not contain the php

Php regular expression check for JSON format $ Json_string = json_encode (array ( 'Blog .9696e.com' )); Echo preg_match ('/[^, :{}\ [\] 0-9. \-+ Eaeflnr-u \ n \ r \ t]/', $ json_string )? 'Yes': 'no ';

Php batch update of database table prefixes $ Database = "databaseName"; // database name $ User = "root"; // database username $ Pwd = "pwd"; // database password $ Replace = 'pre _ '; // The

Tips on using PHP arrays $ Arr = array ( Array ('id' => 1, 'CID' => 1, 'Country' => 'China', 'Province '=> 'hunan '), Array ('id' => 2, 'CID' => 1, 'Country' => 'China', 'Province '=> 'hunan '),

PHP custom function round_pad_zero rounded to decimal places and zero /** * Rounded to and zero * By bbs.it-home.org */ Function round_pad_zero ($ num, $ precision) { If ($ precision

Example of PHP filtering post and get sensitive data /** * Batch filter of post and get sensitive data * By bbs.it-home.org */ If (get_magic_quotes_gpc ()){ $ _ GET =

PHP regular expression matches a combination of 6 to 16 characters (and can only contain digits, letters, and underscores) This article describes how to use php regular expressions to match a combination of 6-bit and 16-bit characters.

Example of sending NetEase 126 email via phpmailer This article describes how to use phpmailer to send NetEase 126.com emails. For more information, see.Example of sending mails using PHPMailer: IsSMTP (); // email server $ mail-> Host

Usage of php case-sensitive conversion functions (strtolower and strtoupper) This article describes the usage of the case-sensitive conversion functions strtolower and strtoupper in php, which are frequently encountered in character

Difference between date and gmdate in the date function in php Echo date ('Y-m-d H: I: S', time (); output: 2013-03-14 12:15:27 Echo gmdate ('Y-m-d H: I: S', time (); output: 2013-03-14 04:15:27 The above is the

Php implements the complete registration and login program (using the mysql database) This article describes how to use php and mysql database to implement a complete code for registration and logon. if you need it, refer to it.To enable

Php cannot call external commands Exec (""/bin/ls-l ""); Exec (""/bin/ls-l "", $ res ); # $ Res is a data. each element represents a row of the result. Exec (""/bin/ls-l "", $ res, $ rc ); # $ Rc