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How to convert English lowercase to uppercase in php: You can use the php built-in function strtoupper() function to achieve this. This function can convert all lowercase characters in the specified string to uppercase and return the string converted to uppercase, such as: [strtoupper("Hello WORLD!")].
strtoupper() function converts a string to uppercase and returns the string converted to uppercase.
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Syntax:
strtoupper(string)
Parameters:
string Required. Specifies the string to be converted.
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Code example:
<?php echo strtoupper("Hello WORLD!"); ?>
Output result:
HELLO WORLD!
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