w3resource

PHP: addslashes() function

Description

The addslashes() function is used to add backslashes in front of the characters that need to be quoted. The predefined characters are single quote ('), double quote("), backslash(\) and NULL (the NULL byte).

Version:

(PHP 4 and above)

Syntax:

addslashes(string_name)

Parameter:

Name Description Required /
Optional
Type
string_name The specified string. Required String

Return values:

The escaped string.

Value Type: String.

Pictorial Presentation:

php-string-addslashes()

Example:

<?php
echo addslashes("I will n't go there.");
echo '<br>';
echo addslashes('"Thank" You');
?>

Output:

I will n\'t go there.
\"Thank\" You 

View the example in the browser

See also

PHP Function Reference

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PHP: Tips of the Day

PHP: Pass a PHP string to a JavaScript variable (and escape newlines)

<script>
  var myvar = <?php echo json_encode($myVarValue); ?>;
</script>

Using json_encode() requires:

  • PHP 5.2.0 or greater
  • $myVarValue encoded as UTF-8 (or US-ASCII, of course)

Since UTF-8 supports full Unicode, it should be safe to convert on the fly.

Note that because json_encode escapes forward slashes, even a string that contains </script> will be escaped safely for printing with a script block.

Ref : https://bit.ly/34f0Dym