perl regular expression cheat sheet

Reprinted from: http://blog.csdn.net/haoel/archive/2009/10/28/4737425.aspxOriginal link: http://coolshell.cn /? P = 1561 (cool shell) Do you often forget some function names or attribute names in CSS? At that time, you must think that if you have a

Even if you are experienced and talented, you have to admit that you cannot remember everything, especially the APIs in various languages. The reference manual (cheat sheet) and Google must be a must, for more convenient use, there are also a lot of

The original English text comes from smashing Magazine. Translated by Woole. Reprint please indicate the source. Regular Expressions (Regular Expression, abbr. Regex) are powerful and can be used to find the information you need in a large string

The original English text is from Smashing Magazine. Translated by dummies. Indicate the source for reprinting. Regular Expression (Regular Expression,Abbr. regex) Is powerful and can be used to find the required information in a large string of

Document directory 1. Greedy/lazy 2. Back referencing) 3. Named capture group (named groups) 4. word boundaries) 5. Minimal group (atomic groups) 6. recursion (recursion) 7. Callback (callbacks) 8. Commenting) More resources) Regular

1. Use a SQL injection cheat sheetA basic principle is to never trust user-submitted data. Another rule is to escape (escape) when you send or store data. Can be summarized as: Filter input, Escape output (FIEO). Input filtering, output