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<?php namespace Any; $value = array( ); for ($i=0;$i<1e10;$i++) { $value[] = $i; } $start = microtime(true); $values = array_map(function($item){ return $item+1;}, $value); $end = microtime(true); echo "Simple func took: ", number_format(($end-$start)*1e3, 2), PHP_EOL; $start = microtime(true); $values = \array_map(function($item){ return $item+1;}, $value); $end = microtime(true); echo "Direct func took: ", number_format(($end-$start)*1e3, 2);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.30, 7.4.0 - 7.4.24, 8.0.0 - 8.0.11
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 67108872 bytes) in /in/JWXnC on line 9
Process exited with code 255.

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