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How to convert all letters to uppercase in php

Release: 2023-02-28 21:00:01
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How to convert all letters to uppercase in php

You can use the strtoupper() function in PHP to convert all characters in a string to uppercase.

Function syntax:

strtoupper(string)
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string: required. Specifies the string to be converted.

Example:

<!DOCTYPE html>
<html>
<body>
<?php
echo strtoupper("Hello WORLD!");
?> 
 
</body>
</html>
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The effect is as follows:

How to convert all letters to uppercase in php

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