dongmo3413 2016-09-22 04:29
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在PHP中输入变量的字符串

how to combine variables with string and generate value

<?php
$bun1="home";
$x="1";
$h= "$"."bun".$x;
echo $h;
?>

I want print $bun1 with result home, but "1" in $bun1 be variable $x

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2条回答 默认 最新

  • duan19780629 2016-09-22 04:32
    关注

    What you're trying to do is called variable variables.

    PHP.net has a whole page on it.

    <?php
    $bun1="home";
    $x="1";
    $h= ${"bun".$x};
    echo $h;
    ?>
    

    Thing is though, from a design standpoint, you're almost always doing it wrong if you're using variable variables. Use arrays instead:

    <?php
    $bun[1] = "home";
    $x=1;
    $h= $bun[$x];
    echo $h;
    ?>
    

    If you're just trying to learn, then okay, have at it.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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