How to check for empty string in PHP ?

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Last Updated : 04 Jun, 2024

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Using the strlen() function

Using the strlen() function, you can check if a string is empty by evaluating its length. If `strlen($string) === 0`, the string is empty. This approach ensures precise length measurement, distinguishing between empty strings and other empty values like `NULL` or `0`.

Example:

PHP

<?php// Consider a string which is empty$s = "";// Return a message if string is emptyif (strlen($s) === 0) { echo "Empty string";} else { echo "Not empty";}?>

Output

Empty string

manojkumarreddymallidi

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How to check for empty string in PHP ? - GeeksforGeeks (2024)

Using the strlen() function

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