Question

I have developed a text box and I am trying to write this data to a text file. The PHP code is generating the file but the data is not being written. below is my code:

<html>
<body>
<form name="form" method="post">
<input type="text" name="text_box" size="50"/>
<input type="submit" id="search-submit" value="submit" />
<?
$a=@$_POST["text_box"];
$myFile = "t.txt";
$fh = fopen($myFile,  w ) or die("can t open file");
fwrite($fh,$a);
fclose($fh);
?>

Answer 1

提交行动的形式是“目标”,但根据您的《公共卫生和植物检疫法》,您的变数为_POST。取而代之的是GET。

Answer 2

你们的法典中看到的最大问题是,你是开立的,是打开的。页: 1

<?

但它应当

<?php

then, the way you call $_POST and write file and stuff means it will be executed when you first load the form into the browser as well. the php engine makes no distinction between first run and consecutive run. this means that even if the user don t submit anything, there will still be an empty file, created from the run of the script where the form was displayed. it s a side effect. i ve modified your code just a little. here s my take on this:

<html>
    <body>
        <form name="form" method="post">
            <input type="text" name="text_box" size="50"/>
            <input type="submit" id="search-submit" value="submit" />
        </form>
    </body>
</html>
<?php
    if(isset($_POST[ text_box ])) { //only do file operations when appropriate
        $a = $_POST[ text_box ];
        $myFile = "t.txt";
        $fh = fopen($myFile,  w ) or die("can t open file");
        fwrite($fh, $a);
        fclose($fh);
    }
?>

Answer 3

表格发送了GET申请,但你试图查阅<代码>_POST[“text_ Box”]。 Try changing that to $_GET[text_ Box ], or using a form approach POST.

Answer 4

您可以仅用以下方式取代您的购买力平价代码:

if ($_REQUEST) {
    file_put_contents("t.txt", $_REQUEST["text_box"]);
}

这将确保档案只有在实际提交表格时,而不是在显示表格时,才会过期。

Answer 5

是否有数据? Try echo. 或,《<条码>印本/code> ,载于<条码>。

http://www.un.org。您的表格方法为get,但您重新尝试使用$_POST。使用<代码>_GET,或_$_REquestST/code>。

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