如何在 PHP 循环中动态创建变量名？
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How do I dynamically create the variable name in a PHP loop?
提问by Matt Elhotiby
Ok so i have this php foreach loop
好的，所以我有这个 php foreach 循环
<?php foreach ($step_count->rows as $step) { ?>
and $step will be the step numbers 1, 2, 3, 4, 5 up to the total steps
和 $step 将是步骤编号 1, 2, 3, 4, 5 直到总步数
within the loop i a need to set the value of the images within the loop to standard_image_1 or whatever step there is...so for example
在循环中 ia 需要将循环中图像的值设置为 standard_image_1 或任何步骤......所以例如
<input value="<?php echo {$standard_image_"$step['number']"}; ?>" />
so basically i need the variable $standard_image_1 and so on depending on the steps but i dont know the correct syntax to do this
所以基本上我需要变量 $standard_image_1 等等，具体取决于步骤，但我不知道这样做的正确语法
回答by Chris Baker
Look at the docs for "variable variables" - http://php.net/manual/en/language.variables.variable.php
查看“变量变量”的文档 - http://php.net/manual/en/language.variables.variable.php
<?php echo ${'standard_image_'.$step['number']}; ?>
Here's a mock-up, using the details you've given: http://codepad.org/hQe56tEU
这是一个模型，使用您提供的详细信息：http: //codepad.org/hQe56tEU
