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@ 2014-05-08T13:46:56Z

<?php

$seats = 7;
$booked_seat = array('1','4','5','6','7');
$booked_a = array_flip($booked_seat);

for ($i=1; $i <= $seats; $i++) {
  printf("seat: %d%s\n", $i, isset($booked_a[$i]) ? " booked" : "");
}

Output
Performance
VLD
References
Branches

array_flip: documentation ( source)
printf: documentation ( source)

preferences:dark modelive preview

36.52 ms | 405 KiB | 5 Q