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1, Ereg () function and eregi () functionfunction Syntax:　　BOOL Ereg/eregi (string pattern, string string [, array regs])function function:　　Matches the expression pattern in string strings and returns False if the match returns true successfully.

$fp = Fsockopen ("www.google.cn", $errno, $errstr, 30);if (! $fp) {echo "$errstr ($errno) ";}else{$out = "get/search?oe=utf8&ie=utf8&source=uds&start=0&hl=zh-cn&q=info%3a". $Domain. " http/1.1 ";$out. = "Host:www.google.cn";$out. = "Connection:close"

There are two sets of regular expression libraries in PHP that are similar in functionality, but have slightly different execution efficiencies: A set is provided by the Pcre (Perl compatible Regular Expression) library. A function named after a

PHP learning regular expression courseware 12th page. Regular expressions have two sets of regular expression function libraries in PHP. the functions are similar, but the execution efficiency is slightly different: one set is provided by the PCRE

Ec (2); 5. & quot; [] & quot; square brackets (character cluster) Usage & nbsp; 1) [] match a character, start with ^ in [] to indicate taking non, that is, all the subsequent characters do not match. & Nbsp; Example 1: [a-zA-Z0-9] match all

Regular ExpressionThere are two sets of regular expression function libraries in PHP. The two functions are similar, but the execution efficiency is slightly different:One set is provided by the PCRE (Perl Compatible Regular Expression) Library.

Php5.3x does not support ereg and eregi any more. The solution is for PHP programmers and websites. many PHP functions have been discarded before, mainly due to PHP version issues (PHP5.3.x). in order to better transition to PHP's future version

RT, regular expressions can handle a lot of things. I. Regular Expression1. Match character1) header match character "^": for example, ^ 0754. Only strings starting with 0754 are matched.2) the last match character "$": for example, 0754 $. Only the

In PHP There are two sets of regular expression libraries. A set is provided by the Pcre (Perl compatible Regular Expression) library. The Pcre library implements pattern matching for regular expressions using the same syntax rules as Perl, using

Regular expressions There are two sets of regular expression libraries in PHP that are similar in functionality, but have slightly different execution efficiencies: A set is provided by the Pcre (Perl compatible Regular Expression) library. A