HTML Tags (Finding, Removing, Encoding, ...)

PHP is a web language - and you're generating, reading, manipulating HTML... it's what the language was originally built for!

htmlentities - see the tags not the result

The builtin PHP function

htmlentities( ... )

lets you encode your HTML so it displays the `tags` not the actual output for the tags.

For example, this string:

<?php
$s = "<h1>Hello World</h1>";

echo( $s );

$b = htmlentities( $s );

echo( $b );

$s = "<h1>Hello World</h1>";

echo( $s );

$b = htmlentities( $s );

echo( $b );

What we want, is special HTML identifiers, like less than and greater than getting replaced with the HTML opcode (

&lt;

and

&gt;

).

The output (showing the raw html passed to the browser):

<?php
<h1>Hello World</h1>

<h1>Hello World</h1>

<h1>Hello World</h1>

<h1>Hello World</h1>

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