PHP replacement of multiple strings into the same solution

CopyCodeThe Code is as follows: $ Name = 'today 3? , Very/cold '; $ Name = strtolower ($ name ); // $ Name = preg_replace ('/[^ a-z0-9 \ s]/', '', $ name ); $ Name = preg_replace ('/[\. \ s + \?, \/"]/',' _ ', $ Name); // change Spaces Echo $

PHP. ini: how to modify the size limit of PHP files to be uploaded

Open PHP. ini, first findFile_uploads = on; whether to allow file upload over HTTP. On is enabled by default. Upload_tmp_dir; upload the file to the place where the temporary file is stored on the server. If it is not specified, the default

360 General PHP Protection Code (detailed instructions for use)

360 released general PHP ProtectionCodeIn fact, phpcms was initially used for security protection. Now it seems that you can join any website with vulnerabilities to solve the phpcmsv9 problem. The solution is as follows, and so on for other

PHP implementation of is_writable

The following functions can be used to replace the built-in is_writable function of PHP: CopyCodeThe Code is as follows: // It can be used to replace the built-in is_writable function of PHP. Function iswritable ($ filename ){ If (preg_match ('/\/

Parse PHP to execute scripts in parallel in multiple processes

PHP processes do not support multithreading. In some scenarios, you can use PHP to implement multi-process to make up for this deficiency: CopyCode The Code is as follows :#! /Usr/bin/ENV PHP $ Cmds = array ( Array ('/apps/bin/launcher. php',

Parse PHP Chinese character conversion pinyin class

Similar code on the network can only be used in gb2312 encoding. The following code can convert Chinese characters to PinYin in UTF-8 encoding. The code and usage are as follows: Copy codeThe Code is as follows: Function Pinyin ($ _ String, $ _ Code

Parse php reflection applications

1. Use of reflection: Copy codeThe Code is as follows: Class Person { Public $ name; Function _ construct ($ name ){ $ This-> name = $ name; } } Interface Module { Function execute (); } Class FtpModule implements Module { Function setHost ($ host ){

Parse thinkphp basic configuration convention. php

Copy codeThe Code is as follows: return array ( /* Project Settings */'App _ debug' => false, // whether to enable the debugging mode'App _ DOMAIN_DEPLOY '=> false, // whether to deploy the project with an independent domain name'App _

PHP implementation of multi-process parallel operations (can be used as a daemon process)

As follows: Copy codeThe Code is as follows: /*** Entry functions* Save this file as ProcessOpera. php* Run/usr/local/php/bin/php ProcessOpera. php &* View the process ps aux | grep php*/ProcessOpera ("runCode", array (), 8 ); /*** Run

Analysis of memcache applications in php

Required environment:Php 5.3.3 Apache 2.2.7 Mysql 5.5.8 Download related documents: Click to downloadDecompress the memcached_1.2.5file and execute memcached.exe-d-install Decompress the php5.3 _ vc6_memcachedll file and copy the php_memcache.dll

In-depth analysis of differences between php include and require

Nclude ()The include () statement includes and runs The specified file. The following documents also apply to require (). These two structures are identical except for how to handle failures. Include () generates a warning and require () causes a

Resolve the session implementation principles in php and the problems that should be paid attention to when using large websites.

Php session PrincipleWe know that session is a way to maintain user session data on the server side, and the corresponding cookie is to maintain user data on the client side. HTTP is a stateless protocol. After the server responds, it loses contact

Difference between the addition of array_merge and array in PHP

First, let's take a look at the key name is string, the difference between the two: Copy codeThe Code is as follows: $ Arr1 = array ('A' => 'php '); $ Arr2 = array ('A' => 'java '); // If the key name is a character with the same key name, the

PHP case sensitivity: function names and class names are not differentiated, and variable names are differentiated.

PHP handles case-sensitive issues in disorder and may occasionally encounter issues when writing code. So here is a summary.However, I do not encourage you to use these rules. We recommend that you always adhere to the "Case sensitivity" and follow

Modify php. ini to shield error information and record logs

This is because the error display is disabled in php. ini and the error is written as a file. This is the result of human setting. display_errors = on. However, the error is not displayed. We recommend that you enable it during debugging and disable

PHP Variable Functions

PHP supports the concept of variable functions. This means that if a variable name has parentheses, PHP will look for a function with the same name as the value of the variable and try to execute it. Variable functions can be used for some purposes,

In-depth analysis of PHP design pattern in iterator Pattern

The Iterator mode provides an abstraction in a common process: an iteration of a set of objects (or scalar) that are located in an unknown part of an object graph. Iterations have several different execution methods: iteration over an array

Low-level Front Algorithm for PHP binary stream bit by bit (details)

Copy codeThe Code is as follows: /*************************************** *************** * Bit-by-bit low front Algorithm * @ Param $ x * @ Return int */ Function reverse ($ x) { $ Result = 0; For ($ I = 0; $ I { $ Result = ($ result $ I )

Summary and analysis of PHP Data Types

PHP has a total of 8 data types: Type name Type Representation Value Bool Boolean True, false Integer Integer -2147483647-2147483648 String String type The string length depends on the

In-depth explanation of PHP variable Storage

1.1.1 zval StructureZend uses the zval structure to store the values of PHP variables. The structure is as follows: Copy codeThe Code is as follows: typedef union _ zvalue_value { Long lval;/* long value */ Double dval;/* double value */ Struct

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