Foreach 2 变量 $_POST

Question

我有这个表格：<form method='post'>  <input name='i' type='hidden' value='' >  <input name='email' type='text' >  <input name='pass' type='password' >  <input type="submit" ></form>以及在 .txt 文件中打印数据的 PHP 代码：<?php  $handle = fopen("data.txt", "a");  foreach($_POST as $variable => $value) {    fwrite($handle, $variable);    fwrite($handle, "=");    fwrite($handle, $value);    fwrite($handle, "\r\n");  }  fwrite($handle, "\r\n");  fclose($handle);  exit;?>结果是：i = 值email = 值pass = 值我不需要打印$_POST['i']值。任何的想法？

Answer 1

添加一个 IF 测试然后忽略循环的迭代$variable使用icontinue;

您还可以使用一个为每一行写入所有数据fwrite

<?php

$handle = fopen("data.txt", "a");

foreach($_POST as $variable => $value) {

    if ( $variable == 'i' ){

        continue;       // will stop this itereation and continue with the next

    }

    // make one write for all 4 bits of data.

    fwrite($handle, "$variable = $value \r\n");

}

fwrite($handle, "\r\n");

fclose($handle);