character case

Regular expressions (regular expression, referred to as regex) are a tool.Two basic uses of regular expressions: find and replace.. the character (period) can match any single character. (. Characters can match any single character, number, letter,

What is grep grep full name is the Global seach REgular Expressionand Print out of the line. (full search regular expression and display), is a powerful text search tool, based on the user's text mode (search criteria) to the target file

WC Word CountWC [OPTION] ... [FILE] ...-L,--lines shows the number of rows-W,--words displays the number of words -C,--bytes shows the number of bytes- L,--max-line-length prints the length of the longest line. eg650) this.width=650; "src=" http://s3

Decode WaysA message containing letters from was A-Z being encoded to numbers using the following mapping:' A '-1 ' B '-2 ... ' Z '-26Given an encoded message containing digits, determine the total number of ways to decode it.for example,given

Common function tests:#! -*-coding:utf-8-*-import strings = ' yes! Thisis a string ' print ' original string: ' + sprint ' lowercase: ' + s.lower () print ' uppercase: ' + s.upper () print ' Case conversion: ' + s.swapcase () print ' first letter

Addslashes: Adds a slash to the string.Bin2hex: binary to hexadecimal.Chop: removes consecutive gaps.Chr: returns the character of the ordinal value.Chunk_split: splits a string into segments.Convert_cyr_string: convert the ancient Slavic string to

Key point: when the "$ _ GET" variable is applied, all the variable names and variable values are displayed in the URL address bar. therefore, this method cannot be applied when the information you send contains a password or other sensitive

ES5 expansion of array Foreach Map Some Every IndexOf LastIndexOf ForEach and mapGrammar: Array. ForEach (function (v, i) {}) Array. map (function (v, i) {}) 1. ForEach is in the analog JQ Example:

Array: A contiguous memory space that stores multiple elements, equivalent to a collection of multiple variables1) define the array:Declare-a Array_Name defines an ordinary array can be omitted declare-a] #arr = (a b c D E F)Declare-a Array_Name

Reference Blog: http://www.cnblogs.com/Camilo/archive/2013/09/21/3332267.htmlHttp://www.cnblogs.com/SunWentao/archive/2008/06/19/1225690.html1. String constantsString.digits: A string containing 0-9String.letters: String containing all uppercase and

1. Find character position functionStrpos ($str, Search,[int]): Find the first position of search in $str starting with int;Stripos ($str, search,[int]): function returns the position of the first occurrence of a string in another string. This

Shortcut keys for phpstorm under WindowsCtrl+shift+n Finding filesCtrl+shift+f find a piece of code in a directory (Ctrl+f upgrade)Ctr+shift+r find a piece of code in a directory and replace it (Ctrl+r's upgraded version)ctrl+alt←/→ returns the

CHAP5:The dangling else:else is matched with its nearest unmatched if, or it is made into a block with curly braces.Switch (shape/character) {case shaping/character: Break;default:break;} It is best to use curly braces in case to define local

Suggestion 1: operate strings correctly. We recommend that you operate strings. How to avoid the extra performance overhead caused by carelessness: 1. Make sure to pack as few items as possible In your own code, you should avoid writing unnecessary

Fourth chapter selection Structure (ii) What is the execution flow of the switch selection structure? Switch Select the function of the break keyword in the structure? This chapter aims to master the switch selection structure to solve the

Phpstorm is a commercial PHP integrated development tool developed by JetBrains, and Phpstorm is ready to help users adjust their coding, run unit tests or provide visual debug functionality. Phpstrom, a plug-in named Magicento, is useful for

Today the project manager sends out a task and needs to test 20 interfaces to see if the push and receive data are normal. Since the data in the docking transfer is a string in XML format, I take the ready-made data, Sir, to push past data and store

PHP Partial String Function Summary Submitmy comments Load in have commentedPHP Partial String Function Summary2015-03-10PHP100 Chinese webPHP100 Chinese web PHP100 Chinese web number Function Introduction Internet Developer community,

PHP $ _ GET and $ _ POST variables are used to obtain information in the form, such as user input information. When processing HTML and PHP forms, PHP form operations must remember that any form element on the HTML page can be automatically used for

1 Find the character position function:Strpos ($str, Search,[int]): Find the first position of search in $str starting with int;Stripos ($str, search,[int]): function returns the position of the first occurrence of a string in another string. This