preg grep examples

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Regular Learning (1) Summary of---Basic rules

In the use of regular expressions, I have been in the guerrilla, it is time to come up with a summary. Because of the irresistible reason of stupidity, can only choose to simply say, only write down the ASCII encoding character matching and

Regular Expression Guide

Regular Expression Guide      Edit recommendations A Guide to the regular expression for answering questionsTechnical developers of common text processing and language development must read it!        Basic Information Author:Yu Sheng  Press:

Detailed PHP security Webshell and Backdoor detection examples

PHP-based applications face a variety of attacks: XSS: Cross-site scripting is a vulnerable point for PHP Web applications. Attackers can use it to steal user information. You can configure Apache, or write more secure PHP code (verify all user

PHP File System Attack wizard

Author: cnbird t00ls.net I. php file system path normalization attackUse // and/. In the path to open/etc/passwd/or/etc/passwd/. As a file.Ii. Path Truncation Attack in PHP File SystemPHP has a path truncation problem (a very evil means snprintf ().

PHP interview questions, that is, no answer

PHP interview questions, that is, no answer I. Basic and program questions (we suggest using the languages you are good at: C/C ++, PHP, and Java) 1. Write a sorting algorithm, which can be Bubble sorting or fast sorting. Assume that the object to

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