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CTYPE_ALPHA(3)								 1							    CTYPE_ALPHA(3)

ctype_alpha - Check for alphabetic character(s)

bool ctype_alpha (string $text) DESCRIPTION
Checks if all of the characters in the provided string, $text, are alphabetic. In the standard C locale letters are just [A-Za-z] and ctype_alpha(3) is equivalent to (ctype_upper($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
o $text - The tested string. RETURN VALUES
Returns TRUE if every character in $text is a letter from the current locale, FALSE otherwise. EXAMPLES
Example #1 A ctype_alpha(3) example (using the default locale) <?php $strings = array('KjgWZC', 'arf12'); foreach ($strings as $testcase) { if (ctype_alpha($testcase)) { echo "The string $testcase consists of all letters. "; } else { echo "The string $testcase does not consist of all letters. "; } } ?> The above example will output: The string KjgWZC consists of all letters. The string arf12 does not consist of all letters. NOTES
Note If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative val- ues have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string contain- ing the decimal digits of the integer. SEE ALSO
ctype_upper(3), ctype_lower(3), setlocale(3). PHP Documentation Group CTYPE_ALPHA(3)

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