POSIX Regex函数
- ereg_replace — 正则表达式替换
- ereg — 正则表达式匹配
- eregi_replace — 不区分大小写的正则表达式替换
- eregi — 不区分大小写的正则表达式匹配
- split — 用正则表达式将字符串分割到数组中
- spliti — 用正则表达式不区分大小写将字符串分割到数组中
- sql_regcase — 产生用于不区分大小的匹配的正则表达式
使用示例:
<?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); ?>
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