PHP—POSIXRegex函數

POSIX Regex函數

ereg_replace — Regex替換

ereg — Regex匹配

eregi_replace — 不區分大小寫Regex替換

eregi — 不區分大小寫Regex匹配

split — 用Regex將字串分割到數組中

spliti — 用Regex不區分大小寫將字串分割到數組中

sql_regcase — 產生用於不區分大小的匹配的Regex

使用樣本：

<?php// Returns true if "abc" is found anywhere in $string.ereg("abc", $string);// Returns true if "abc" is found at the beginning of $string.ereg("^abc", $string);// Returns true if "abc" is found at the end of $string.ereg("abc$", $string);// Returns true if client browser is Netscape 2, 3 or MSIE 3.eregi("(ozilla.[23]|MSIE.3)", $_SERVER["HTTP_USER_AGENT"]);// Places three space separated words into $regs[1], $regs[2] and $regs[3].ereg("([[:alnum:]]+) ([[:alnum:]]+) ([[:alnum:]]+)", $string, $regs);// Put a <br /> tag at the beginning of $string.$string = ereg_replace("^", "<br />", $string);// Put a <br /> tag at the end of $string.$string = ereg_replace("$", "<br />", $string);// Get rid of any newline characters in $string.$string = ereg_replace("\n", "", $string);?>

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