PHP strtoupper() Function
PHP String Reference
Example
Convert all characters to uppercase:
<?php
echo strtoupper("Hello WORLD!");
?>
Run example »
Definition and Usage
The strtoupper() function converts a string to
uppercase.
Note: This function is binary-safe.
Related functions:
- strtolower() - converts a
string to lowercase
- lcfirst() - converts the
first character of a string to lowercase
- ucfirst() - converts the first
character of a string to uppercase
- ucwords() - converts the first
character of each word in a string to uppercase
Syntax
Parameter |
Description |
string |
Required. Specifies the string to convert |
Technical Details
Return Value: |
Returns the the uppercased string |
PHP Version: |
4+ |
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