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<?php $all = []; for( $i=0; $i<2000; $i++ ) { for( $j=0; $j<500; $j++ ) { $all[$i][$j] = $j; } } $mergedArray = []; $start = microtime(true); foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } $mergedArray = []; foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } $mergedArray = []; foreach($all as &$templateClosingArray) { $mergedArray += $templateClosingArray; } echo PHP_EOL . 'Union time: ' . microtime(true); $start = microtime(true); $mergedArray = []; $mergedArray = array_merge(...$all); $mergedArray = []; $mergedArray = array_merge(...$all); $mergedArray = []; $mergedArray = array_merge(...$all); echo PHP_EOL . 'Array merge time: ' . microtime(true);
Output for git.master_jit
Union time: 1761814808.1276 Array merge time: 1761814808.165
Output for git.master
Union time: 1761814808.0332 Array merge time: 1761814808.058

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