How to convert the contents of a php text box to an array

When developing using PHP, in some cases it is necessary to convert the content entered in a text box into an array for convenient subsequent operations. This article will explain how to convert the contents of a PHP text box into an array and provide code examples.

1. Use the explode function for string splitting

The explode function in PHP can split a string according to the specified delimiter and divide the split string into Stored in an array. Therefore, we can split the content in the text box according to the specified delimiter, and then store the split string in an array.

The sample code is as follows:

<?php $text = $_POST[&#39;text&#39;];  //获取文本框中的内容
$delimiter = &#39;,&#39;;   //定义分隔符为逗号
$array = explode($delimiter, $text);  //使用explode函数对文本框中的内容进行分割，并将分割后的字符串存储在数组中
print_r($array);  //输出数组
?>

2. Use the preg_split function for regular expression splitting

In addition to using the explode function for splitting, we can also use PHP The preg_split function performs regular expression splitting. This function can split a string according to the specified regular expression and store the split string in an array.

The sample code is as follows:

<?php $text = $_POST[&#39;text&#39;];  //获取文本框中的内容
$pattern = &#39;/[\n\r,]+/&#39;;   //定义分隔符为换行符、回车符和逗号
$array = preg_split($pattern, $text);  //使用preg_split函数对文本框中的内容进行分割，并将分割后的字符串存储在数组中
print_r($array);  //输出数组
?>

3. Remove spaces from the array

When using the above code to convert the text box content to an array, an error may occur. If there are spaces, you can use PHP's array_map function to remove spaces from each element of the array.

The sample code is as follows:

<?php $text = $_POST[&#39;text&#39;];  //获取文本框中的内容
$delimiter = &#39;,&#39;;   //定义分隔符为逗号
$array = explode($delimiter, $text);  //使用explode函数对文本框中的内容进行分割，并将分割后的字符串存储在数组中
$array = array_map(&#39;trim&#39;, $array);  //使用array_map函数对数组的每个元素进行去除空格处理
print_r($array);  //输出数组
?>

The above is the main method and sample code for using PHP to convert text box content into an array. Readers can choose a suitable method for implementation according to their own needs.

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