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IntlChar toupper() function in PHP
The IntlChar toupper()function converts the character into Unicode character uppercase.
Syntax
IntlChar::toupper (val)
Parameters
val − An integer or character encoded as a UTF-8 string.
Return
The IntlChar toupper()function returns the converted uppercase character. If the character is already in uppercase, the same character is returned.
Example
The following is an example −
<?php var_dump(IntlChar::toupper("j")); echo "<br>"; var_dump(IntlChar::toupper("89")); echo "<br>"; var_dump(IntlChar::toupper("J")); echo "<br>"; var_dump(IntlChar::toupper("jkl")); ?>
Output
The following is the output −
string(1) "J" NULL string(1) "J" NULL
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