dragon7713 2017-09-04 13:59
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使用strpos PHP检查多个变量？

I'm trying to make a simple search box that uses strposto check if the entered keyword makes a match with a variable. I have this working perfectly, however I can't seem to get it to work with multiple variables. Also I can't work out how to get it to output which variable has made the match.

I thought something along the lines of this would work for checking multiple variables but I was sadly mistaken:

$pos = strpos($mystring1, $mystring2, $findme);

If anyone can help here that would be great, this is the code I currently have working for one variable.

PHP

<?
if(isset($_POST["searchString"])) {
    $mystring1 = 'how are you today';
    $mystring2 = 'hello what is your name';

    $findme = $_POST["searchString"];
    $pos = strpos($mystring1, $findme);

    if ($pos !== false) {
         //found
    } else {
         //not found
    }
}
?>

HTML

<html>
    <body>
        <form action="test.php" method="post">
            <input type="text" name="searchString">
        </form>
    </body>
</html>
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1条回答 默认 最新

  • duanlun2827 2017-09-04 14:16
    关注

    You could do it like this.

    <?
if(isset($_POST["searchString"])) {
    $mystring1 = 'how are you today';
    $mystring2 = 'hello what is your name';

    $findme = $_POST["searchString"];
    $pos = strpos($mystring1, $findme);
    $pos2 = strpos($mystring2, $findme);

    if ($pos !== false && $pos2 !== false) {
         //found in both strings
    } else if ($pos !== false || $pos2 !== false) {
         //found in 1 of the 2 strings
    } else {
         //not found
    }


    if ($pos !== false) {
         //found in string 1
    } 
    if ($pos2 !== false) {
         //found in string 2 
    } 
}
?>
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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