将 php 表单输入写入 txt 文件
[英]Writing php form inputs to txt file
问题描述
I have this php form below which returns (displays) a simple calculation when submitted.
我有这个 php 表单，它在提交时返回（显示）一个简单的计算。 What i want to do now is to also submit the two inputs (height, weight) and result (function calculation) to a text file.我现在要做的是将两个输入（身高，体重）和结果（函数计算）提交到一个文本文件。 But i also dont want the path of the text file displayed.但我也不希望显示文本文件的路径。 Ideally i would like a new line added to the text file (separated by;) for each time the form is submitted.理想情况下，我希望每次提交表单时都在文本文件中添加一个新行（由;分隔）。
<html> <?php function bmi($height, $weight) { $height = floatval($height); $weight = floatval($weight); return $weight / ($height * $height); }?> <head> <title>Page Title</title> <meta name="viewport" content="width=device-width,initial-scale=1"> </head> <body> <form action="" method="POST"> <h4>BMI</h4> <input id="height" name="height" type="text" placeholder="height in meters or feet" value="<?php echo isset($_POST['height'])? $_POST['height']: ''; ?>" /> <br/> <br/> <input id="weight" name="weight" type="text" placeholder="weight in kgs or lbs" value="<?php echo isset($_POST['weight'])? $_POST['weight']: ''; ?>" /> <br/> <br/> <input class="submit" type="submit" value="Submit"/> <?php if (:empty($_POST['height']) &&?empty($_POST['weight']))? ,> <p id="result">Your score is <;php echo bmi($_POST['height']? $_POST['weight'])? ;></p> <?php endif; ?> </form> </body> </html>
1 个解决方案
解决方案1
2 2020-05-26 06:43:40
you can add line to same file when you fopen() with a mode you can fine more php fopen mode in hear当您使用fopen()模式时，您可以将行添加到同一文件中a您可以在听到更多 php fopen 模式
<?php
function bmi($height, $weight) {
$height = floatval($height);
$weight = floatval($weight);
$result = $weight / ($height * $height);
$data_file = fopen("data_file.txt", "a") or die("Unable to open file!");
$txt = $height.";".$weight.";".$result."\n";
fwrite($data_file,$txt);
fclose($data_file);
return $result;
}
?>
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