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ctype_alpha()

« ctype_alnum | ctype_cntrl »
<?php
$bool 
ctype_alpha (
    
  // string $text
);
?>
Result
$bool = true
Examples
#1 ctype_alpha  ("KjgWZC")
#2 ctype_alpha  ("arf12")
See also
ctype_lower, ctype_upper, setlocale