Jim L. I did't actually consider that wide range of time values. Here
is an update. Still this can be written without help of regex. I must
add one more thing that a '00:01' is invalid in 12 hour format. OP
wants it to be 12-hour format.
function valid_time($time){
$m = substr($time, -2);
$h = (explode(':', substr($time, 0, -2)));
$h = $h[0];
return (is_numeric($h) && is_numeric($m) && $h>0 && $h<13 &&
$m>=0 && $m<60);
}
See the code in action here http://ideone.com/tSQIb
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Shiplu Mokaddim
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