php strtoupper() function
Translation results：
英[ˈʌpə(r)] US[ˈʌpɚ]
adj. Above; higher status; mainland; surface layer
n. upper, boot upper; excitement agent; exciting experience
plural: uppers
php strtoupper() functionsyntax
Function:Convert all characters to uppercase
Syntax: strtoupper(string)
Parameters:
| Parameter | Description |
| string | Required, specified to be converted String |
Description: The strtoupper() function converts the string to uppercase. This function is binary safe.
php strtoupper() functionexample
<?php $i = "hello world"; $j = strtoupper($i); echo $j; ?>
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Output:
HELLO WORLD
<?php $i = "I'm study in php.cn"; $j = strtoupper($i); echo $j; ?>
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Output:
I'M STUDY IN PHP.CN