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正则表达式例子:在一个字符串中查找另一个字符串

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Release: 2016-06-21 09:13:33
Original
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正则|字符串


正则表达式

返回列表


中查找

>第二个字符串可以在第一个字符串的任何位置

>第一个字符串以第二个字符串开始

>第一个字符串以第二个字符串结束

>区分大小写




if(isset($string) and isset($query) and $string"" and $query""){
    if(isset($case)){
        $func = "ereg";
    }
    else{
        $func = "eregi";
    }
    switch($where){
        case "^":
            $query = "^" . $query;
            break;
        case "$":
            $query .= "$";
            break;
    }
    eval("\$found = $func(\"$query\",\"$string\");");
    if($found){
        echo "找到!";
    }
    else{
        echo "未找到!";
    }
}
?>





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