POSIX Regex函數
ereg_replace — 正規表示式取代
ereg — 正規表示式比對
eregi_replace — 不區分大小寫的正規表示式配對
eregi_replace — 不區分大小寫的正規表示式配對
eregi_replace —不區分大小寫的正規表示式。用正規表示式將字串分割到陣列中
spliti — 用正規表示式不區分大小寫將字串分割到陣列中
sql_regcase — 產生用於不區分大小的符合的正規表示式
使用範例:
<?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); ?>