ctype_upper

Check for uppercase character(s) (PHP 4 >= 4.0.4, PHP 5)
bool ctype_upper ( string text )

Checks if all of the characters in the provided string, text, are uppercase characters.

Parameters

text: The tested string.

Return Values

Returns TRUE if every character in text is an uppercase letter in the current locale.

Examples

Example 425. A ctype_upper() example (using the default locale)

copy to clipboard

<?php

$strings = array('AKLWC139', 'LMNSDO', 'akwSKWsm');

foreach ($strings as $testcase) {

    if (ctype_upper($testcase)) {

        echo "The string $testcase consists of all uppercase letters.\n";

    } else {

        echo "The string $testcase does not consist of all uppercase letters.\n";

    }

}
?>

The above example will output:

copy to clipboard

The string AKLWC139 does not consist of all uppercase letters.

The string LMNSDO consists of all uppercase letters.

The string akwSKWsm does not consist of all uppercase letters.

ctype_upper

Check for uppercase character(s) (PHP 4 >= 4.0.4, PHP 5)
bool ctype_upper ( string text )

Parameters

Return Values

Examples

Example 425. A ctype_upper() example (using the default locale)

Code Examples / Notes » ctype_upper

Change Language

ctype_upper

Check for uppercase character(s) (PHP 4 >= 4.0.4, PHP 5) bool ctype_upper ( string text )

Parameters

Return Values

Examples

Example 425. A ctype_upper() example (using the default locale)

Code Examples / Notes » ctype_upper

Change Language

Check for uppercase character(s) (PHP 4 >= 4.0.4, PHP 5)
bool ctype_upper ( string text )