How to remove html tags from array elements in php

Implementation steps: 1. Use the foreach statement to traverse the array elements by referencing the loop, with the syntax "foreach ($array as &$value) { //loop body code}"; 2. In the loop body, Use the strip_tags() function to remove the html tags in the array elements, the syntax is "$value=strip_tags($value);".

The operating environment of this tutorial: windows7 system, PHP8 version, DELL G3 computer

php removes the html in the array element Tag method

In PHP, you can use the foreach statement and strip_tags() function to remove html tags from array elements.

Implementation steps: 1. Use the foreach statement to traverse the array elements through reference loops

Generally, when using the foreach statement to traverse the array, it is a backup of the array Operations generally do not affect the array itself.

If you want to affect the array itself, you need to use a reference cycle to modify the array elements (add & before $value), so that the foreach statement will assign a value by reference instead of copying a value.

foreach ($array as &$value) { 
    //循环体代码
}

Step 2: In the loop body, use the strip_tags() function to remove the html tags in the array elements

$value=strip_tags($value);

The loop ends, and the All html tags will be removed.

Implementation example:

<?php
$array= array("1<br>","hello<br>","This is some <b>bold<b> text.","<b>4<b>","<s>5<s>");
var_dump($array);
foreach ($array as &$value) { 
    $value=strip_tags($value);
}
var_dump($array);
?>

##Extended knowledge: strip_tags() function

The strip_tags() function strips HTML, XML, and PHP tags from a string.

Comments: This function always strips HTML comments. This cannot be changed via the allow parameter.

Note: This function is binary safe.

strip_tags(string,allow)

ParametersDescriptionRequired . Specifies the string to check. Optional. Specifies allowed tags. These tags will not be deleted.

string
allow

Return value: Returns the stripped string.

Example 1: Strip all HTML tags in a string:

<?php
$str="<s>Hello</s><br> <b>world!</b>";
echo strip_tags($str);
?>

Example 2: Strip all HTML tags in a string, but allow Tag:

<?php
echo strip_tags("Hello <b><i>world!</i></b>","<b>");
?>

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