Foreach 2 var $_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>以及打印 .txt 文件中的数据的 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 = 价值电子邮件 = 价值通行证 = 价值我不需要打印$_POST['i']值。任何想法？

Answer 1

添加一个 IF 来测试$variable循环i迭代，然后使用continue;

您还可以使用一个写入每一行的所有数据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);