<?php // performance hit processing non-fatal errors w/ custom error handler (e_notice, e_warning) // affects versions 7.4.7 & 7.4.8 // array of seq. ints $start = 3; $number_of_values = 5000; $seq_array = range($start, $start+$number_of_values-1); // set error handler function error_handler_fn($errno, $errstr, $errfile, $errline) { $dummy = '0'; // print_r(implode(", ", Array($errno, $errstr, $errfile, $errline))."\n"); } set_error_handler("error_handler_fn"); // array to index $array = Array(1,2,3); // run loop $t1 = microtime(true); foreach ($seq_array as $val) { $nothing = $array[$val]; // E_NOTICE (8) - try to index array at undefined index (performance issue) // $nothing2 = count(); // E_WARNING (2) - try to count nothing (similar performance issue) } $t2 = microtime(true); $outmsg = "\n\nRun time: " . round(($t2-$t1)*1000.,2) . " milliseconds (" . phpversion() . ")"; print_r($outmsg); ?>
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