Php Alphanumeric

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PHP kanji alphanumeric underscore regular expression

^ s * | s * $ Comment: Can be used to delete the first line of the first line of the whitespace characters (including spaces, tabs, page breaks, etc. ), A very useful expression $ action = trim ($ _ get ['action']); if ($ action == "sub") {$ str = $ _post ['dir']; & ...

PHP Regular expression basic function modifier metacharacters character and need escape word

The characters you need to escape in the PHP tutorial regular expressions are as follows: $^* () +={}[]|/:<>. "Note: Perl style expressions require/start and end, such as:/food/table matching characters Food Perl modifiers are as follows: I complete a case-insensitive search G Find all occurrences (all occurrences, complete global search) m treats a string as multiline (m means multiple (listbox)). By default, ^ and $ ...

php authentication user name legitimacy code

php tutorial to verify the legitimacy of the user name regular code We verify this user name is a regular validation of letters, numbers, username, not including Chinese Oh. function funcstrnum ($ str, $ num1 = '', $ num2 = '') // alphanumeric {if ($ num1! = '' and $ num2! = '') {return (preg_match ("/ ^ [^ a-z0-9a-z _@!.-] {& q ...

URL function library: rawurlencode

Rawurlencode (PHP3, PHP4) rawurldecode---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Follow the RFC1738 URL encoding syntax: string rawurlencode (String str) Description: All non-alphabetic characters except-_.

URL function library: UrlEncode

UrlEncode (PHP3, PHP4) urlencode---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; URL-encoded string syntax: String UrlEncode (String str) Description: Add all non-alphanumeric strings except-_. In percent sign (%) followed by two confusing numbers ...

String function Library: addcslashes

Addcslashes (PHP4 >= 4.0b4) addcslashes---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Precede the specified character with the backslash syntax: string addcslashes (String str, string charlist) Description: The parameter cha ...

The successful way of Internet Entrepreneurship (III.): Domain name Problem FAQ

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall in understanding the Internet entrepreneurship Theory knowledge, began the field to carry out the actual operation of the website business.   In this chapter, we will explain in detail how to build a Web site that conforms to the user experience. Web page planning and style design second, the choice of the website programming language third, the choice of website database four, the Web site's hardware requirements and preparation of five, server hosting and maintenance of the above content can be read to the article "Internet entrepreneurship success of the Road (iii): Web server ...

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