Does in_array() use a search algorithm (i.e., binary search), or does it
check sequentially each element in the array?
I am using in_array() within a while{} loop to check query results against
an access-list array to produce a third array containing items that
successfully passed the comparison test. Because the two starting arrays in
the worst-case scenario can have 8,000 items each, the loop is timing out.
Advice or alternative methods are appreciated.
Code Sample:
<?php
function check_results($results, $access_list)
{ # Check for $results in array $access_list and
# add matches to array $match.
$result = false;
$match = array();
while ($r = mysql_fetch_row($results))
{ if ( in_array($r[0], $access_list) )
{ $match[] = $r; }
}
if ( count($match) > 0 ) { $result = $match; }
return $result;
}
?>
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