ctype_alpha

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

Checks if all of the characters in the provided string, text, are alphabetic. In the standard C locale letters are just [A-Za-z] and ctype_alpha() is equivalent to (ctype_upper($text) || ctype_lower($text)) if $text is just a single character, but other languages have letters that are considered neither upper nor lower case.

Parameters

text: The tested string.

Return Values

Returns TRUE if every character in text is a letter from the current locale, FALSE otherwise.

Examples

Example 417. A ctype_alpha() example (using the default locale)

copy to clipboard

<?php

$strings = array('KjgWZC', 'arf12');

foreach ($strings as $testcase) {

    if (ctype_alpha($testcase)) {

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

    } else {

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

    }

}
?>

The above example will output:

copy to clipboard

The string KjgWZC consists of all letters.

The string arf12 does not consist of all letters.

ctype_alpha

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

Parameters

Return Values

Examples

Example 417. A ctype_alpha() example (using the default locale)

Code Examples / Notes » ctype_alpha

Change Language

ctype_alpha

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

Parameters

Return Values

Examples

Example 417. A ctype_alpha() example (using the default locale)

Code Examples / Notes » ctype_alpha

Change Language

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