PHP

Based on PHP5 magic constants and magic methods. Magic constant: 1. _ LINE _ returns the current row number in the file. 2. _ FILE _ returns the complete FILE path and FILE name. If it is used in a include file, the include file name is returned.

In-depth analysis of PHP garbage collection mechanism for memory leakage. The last time we talked about refcount and is_ref, here we will talk about memory leaks and copy the code as follows: $ aarray (, unset ($ a); in the old PHP version, memory

Three PHP running methods in Window are illustrated. Whether PHP can be successfully run on the Apache server depends on how we configure the PHP running mode. There are three main ways to run PHP so far: a. run PHP in the mode of module loading. If

Go deep into the HashTable structure in PHP. HashTable is the most important and widely used data structure in the Zend Engine. it is used to store almost everything. 1.2.1 Data structure HashTable data structure is defined as follows: the

Parse call_user_func_array in php. 1. directly call the method to copy the code: functiontest ($ a, $ B) {echo Test 1 :. $. $ B;} calls the test method. array (asp, php) corresponds to the corresponding parameter call_user_func _ 1. directly call

In-depth study of php regular expressions. 1. in brief, regular expressions are a powerful tool for pattern matching and replacement. We can find regular expressions in almost all UNIX-based tools. 1. Getting started In short, regular expressions

Based on some very serious defects of PHP. 1. poor support for recursion is a function calling mechanism. This is a powerful feature that can make some complicated things very simple. One example using recursion is quick. 1. poor support for

Php text watermark and thumbnail implementation code. ImageCreateFrom * the image loading function loads images with different suffixes: imagecreatefromgifimagecreatefrom?imagecreatefrompngimagecreatefromwbmp imagecreatefromstring in the format of

PhpMssql supports simple encapsulation of stored procedures. Copy the code as follows :? Php ** class: Mssql * time: 2009-12-10 * author: Libaochang * version: 1.0b * description: mssqldatabaseaccessclass, itcanexecutetheproceduror The code is as

PHP reads and modifies the code of a line of content in a large file. Copy the code as follows: $ fpfopen (d: file.txt, r +); if ($ fp) {$ i1; while (! Feof ($ fp) {modify the second row of data if ($ i2) {fseek ($ fp, 2, SEEK_CUR); fwrite ($ fp ,#

The signature of the phpUTF8 file is incorrect. That is, BOM format encoding is available, or BOM format encoding is not available. If you see the content of the file, there is no difference, the following column File (schema. sqlite. SQL) content

Php object-oriented full strategy (14th) php5 interface technology. 20. PHP5 interface technology PHP, like most object-oriented programming languages, does not support multiple inheritance. that is to say, each class can only inherit one parent

PHPLogphp debugging tracing tool. Principle: 1. in the process of program execution, record the variables you want to trace, the call stack and the parameters of each function call in the corresponding place, and record the information in a certain

Several php pen questions from night travelers. I. Basic question 1. write the output result of the following program and copy the code as follows :? $ Str1null; $ str2false; echo $ str1 $ str2? Equal: not equal; $ str3; $ str40; ec I. basic

PHP class for simple conversion in UTF8 encoding. I once found a JS version, but it cannot be used in UTF8 encoding, so I came up with the idea of writing it myself. In fact, the implementation principle of this code is very simple, but I found a JS

PHP componentized programming skills. However, its UI is not convenient, not only PHP, but any Web programming language has a similar problem in UI design. the host language and HTML are mixed into one file, there are a lot of duplicates, but it is

WindowsIISPHP5.2 installation and configuration methods. Step 1: Download the php5.2forwindows installation package and decompress it to C: php. Note that the extracted directory can be on any disk, but the directory name cannot contain spaces. The

Example of a php shopping cart. Code for generating the shopping cart session if (! $ Session! $ Scid) {* session is used to differentiate each shopping cart, which is equivalent to the ID card number of each car. scid is used to identify only one

Php reverse shell implementation code. Very helpless, did not expect any good way, then came a flash. Put a php page and the shell can be directly played back. besides, it is much more convenient to operate in the console than webshell, and it is

Phpsession application instance logon verification. The copy code is as follows: htmlheadtitleLogintitlemetahttp-equivContent-Typecontenttexthtml; charsetgb2312headbodyformnameform1methodpostactionlogin. ph The code is as follows: Login