w3resource

PHP: strlen() function

Description

The strlen() function is used to return the length of a string.

Version:

(PHP 4 and above)

Syntax:

strlen(string_name)

Parameter:

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

Return value:

The length of the string on success, and 0 for an empty string.

Value Type: Integer.

Example:

<?php 
$string_name = 'Welcome to w3resource.com';
echo strlen($string_name)."<br>";
$string_name = ' Welcome to w3resource.com  ';
echo strlen($string_name)."<br>";
?>

Output:

25
28

View the example in the browser

See also

PHP Function Reference

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Next: strnatcmp



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