How can I transfer HTML content generated by PHP to a webpage using JSON and prevent unnecessary character escaping?

Transmit HTML Code via JSON

Question:

How can I transfer HTML content generated by a PHP script to a webpage using JSON?

Answer:

Utilize the json_encode function to convert your HTML string into valid JSON. The function will automatically escape necessary characters. However, it may perform unnecessary escapes unless you specify flags to prevent them.

For example, the following PHP code demonstrates this:

<code class="php">$html = '<p class="special">content</p>';
$json = json_encode($html);</code>

This will produce JSON with an unnecessary backslash before the / character:

<code class="json">"<p class=\"special\">content</p>"</code>

To avoid this, you can use the JSON_UNESCAPED_SLASHES flag as follows:

<code class="php">$json = json_encode($html, JSON_UNESCAPED_SLASHES);</code>

This will result in JSON without the unnecessary backslash:

<code class="json">"<p class=\"special\">content</p>"</code>

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