determine if all values in array are equal

I have the following values in a single field from a mysql db

$rec1="4/1 @ 4p, 4/7 @ 4p, 4/8 @ 4p, 4/14 @ 4p, 4/15 @ 4p, 4/22 @ 4p, 4/28 @ 4p ";
$rec2="4/1 @ 4p, 4/7 @ 7p, 4/8 @ 4p, 4/14 @ 4p, 4/15 @ 4p, 4/22 @ 4p, 4/2开发者_Python百科8 @ 4p ";

I need to determine whether all of the time values are the same and if so return just the single time value, otherwise return the entire string. In two records above I would want returned value to be - $rec1=4p (all the times were equal, don't care about the dates) $rec2= unchanged from original $rec2 above since at least one of the time values is different.

Give this a shot:

$rec1="4/1 @ 4p, 4/7 @ 4p, 4/8 @ 4p, 4/14 @ 4p, 4/15 @ 4p, 4/22 @ 4p, 4/28 @ 4p ";
$rec2="4/1 @ 4p, 4/7 @ 7p, 4/8 @ 4p, 4/14 @ 4p, 4/15 @ 4p, 4/22 @ 4p, 4/28 @ 4p ";

function wtf($over) {
    $split = split(",",$over);
    $times = array();
    foreach ($split as $schedule) {
        $parts = split("@",$schedule);
        $times[] = trim($parts[1]);
    }
    $times = array_unique($times);
    if (count($times) == 1) return $times[0];
    return $over;
}

echo wtf($rec1);
echo "<BR>";
echo wtf($rec2);

Verified working at: http://gfosco.kodingen.com/6241557.php

Use either array_unique or array_count_values