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? ??? ?? PHP ???? PHP? `mysql_result()` ??? MySQLi? ??? ??? ??????

PHP? `mysql_result()` ??? MySQLi? ??? ??? ??????

Nov 25, 2024 pm 01:29 PM

How to Replace PHP's `mysql_result()` Function with MySQLi?

MySQLi?? PHP? mysql_result() ?? ??? ???? ??

??? PHP ???? ????? ???? mysql_result() ???, ???? MySQL ?? ???? ?? ???? ??? ???? ? ????. ??? ? ??? MySQL ??????? ?? ???? ?? ???? ???? ??? MySQLi?? ????? ???? ????.

? ????? ?? ?? ?? ??

??? ?? ???? ?? ?? ? ?? MySQLi ?? ??? ???? fetch_assoc() ???? ???? ?? ?? ???? ????. ?? ??? ????.

if ($r && $r->num_rows) {
    $row = $r->fetch_assoc();
    $blarg = $row['blah'];
}

? ?? ???? ?? ?? ???? mysql_result()? ?? ?? ??? ???? ??? ???? ??? ? ????.

??? ?? ?? ??

MySQLi?? mysql_result()? ??? ????? ??? ?? ??? ?? ??? ??? ? ????. ??:

function mysqli_result($res,$row=0,$col=0){ 
    $numrows = mysqli_num_rows($res); 
    if ($numrows &amp;&amp; $row <= ($numrows-1) &amp;&amp; $row >=0){
        mysqli_data_seek($res,$row);
        $resrow = (is_numeric($col)) ? mysqli_fetch_row($res) : mysqli_fetch_assoc($res);
        if (isset($resrow[$col])){
            return $resrow[$col];
        }
    }
    return false;
}

? ??? ? ? ? ???? ?? ??? ????? ?? ???? ??? ?? ???? ?????. ?? ??? ??? ??? ??? ???? ??? ?????.

???:

mysqli_result() ??? mysql_result()? ??? ???? ??? ? ????. :

if ($r && $r->num_rows)  
    $blarg = mysqli_result($r, 0, 'blah');

?? ? ?? ??

??? ?? mysqli_result() ??? ???? ??? ?? ???? ??? MySQLi ?? ???? ???? ???? ? ??? ? ?? ?? ? ????. ??? ? ??? PHP? ?? ?? ??? ???? ?? mysql_result() ??? ?? ??? ?? ??? ??? ? ??? ?? ???? ???.

? ??? PHP? `mysql_result()` ??? MySQLi? ??? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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