3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test_data_1k = array_fill( 0, 1000, 'X' ); function fastcount( &$array ) { end($array); $k = key($array); reset($array); return $k; } function bench( $reps, &$data, $callback ) { $start_t = microtime(true); ob_start(); for( $i = 0; $i < $reps; $i++ ) { call_user_func( $callback, $data ); } ob_end_clean(); $total_t = microtime(true) - $start_t; return $total_t; } function while_each( &$data ) { while( $i = each($data) ) { echo $i[1]; } } function foreach_loop( &$data ) { foreach( $data as &$item ) { echo $item; } } function indexed_foreach_loop( &$data ) { foreach( $data as $i => &$x ) { echo $data[$i]; } } function optimal_loop( &$data ) { for( $i = 0, $max = count($data); $i < $max; $i++ ) { echo $data[$i]; } } function inlined_fastcount( &$data ) { end($data); $max = key($data); for( $i = 0; $i <= $max; $i++ ) { echo $data[$i]; } } function iterator_with_fastcount( &$data ) { for( $i = 0; $i < fastcount($data); $i++ ) { echo $data[$i]; } } function iterator_with_count( &$data ) { for( $i = 0; $i < count($data); $i++ ) { echo $data[$i]; } } echo 'Foreach: ' . bench( 10, $test_data_1k, 'foreach_loop' ) . "\n"; echo 'Indexed Foreach: ' . bench( 10, $test_data_1k, 'indexed_foreach_loop' ) . "\n"; echo 'Inlined FastCount: ' . bench( 10, $test_data_1k, 'inlined_fastcount' ) . "\n"; echo 'Optimal Loop: ' . bench( 10, $test_data_1k, 'optimal_loop' ) . "\n"; echo 'While-Each: ' . bench( 10, $test_data_1k, 'while_each' ) . "\n"; echo 'With FastCount: ' . bench( 10, $test_data_1k, 'iterator_with_fastcount' ) . "\n"; echo 'With Count: ' . bench( 10, $test_data_1k, 'iterator_with_count' ) . "\n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.4.10.0030.02314.96
7.4.00.0030.02015.11
7.3.130.0070.01514.96
7.3.120.0110.01615.22
7.3.110.0050.02015.02
7.3.100.0070.01514.86
7.3.90.0060.01314.86
7.3.80.0120.01114.94
7.3.70.0120.01215.07
7.3.60.0060.01515.01
7.3.50.0080.01114.92
7.3.40.0020.02014.90
7.3.30.0060.01814.91
7.3.20.0040.01816.56
7.3.10.0090.01516.83
7.3.00.0050.01716.52
7.2.260.0100.01915.32
7.2.250.0140.01415.39
7.2.240.0020.02015.15
7.2.230.0060.01515.31
7.2.220.0030.02015.29
7.2.210.0060.01814.86
7.2.200.0050.01815.27
7.2.190.0050.01815.16
7.2.180.0110.01215.15
7.2.170.0000.02315.19
7.2.160.0030.01615.21
7.2.150.0070.01416.94
7.2.140.0030.01816.92
7.2.130.0060.01417.04
7.2.120.0050.01816.97
7.2.110.0050.01917.04
7.2.100.0050.01816.98
7.2.90.0030.01916.87
7.2.80.0120.01116.91
7.2.70.0080.01416.88
7.2.60.0050.01917.01
7.2.50.0060.01416.96
7.2.40.0000.02217.04
7.2.30.0050.01617.03
7.2.20.0030.02016.79
7.2.10.0100.00916.93
7.2.00.0030.01517.73
7.1.330.0030.02315.77
7.1.320.0000.02515.65
7.1.310.0050.01915.74
7.1.300.0050.01715.67
7.1.290.0070.01915.96
7.1.280.0030.02215.78
7.1.270.0110.01715.73
7.1.260.0050.01815.79
7.1.250.0080.01815.88
7.1.240.0040.02115.70
7.1.230.0030.02115.96
7.1.220.0030.01915.73
7.1.210.0030.01915.70
7.1.200.0070.01715.73
7.1.190.0030.02016.00
7.1.180.0030.02315.76
7.1.170.0070.01415.95
7.1.160.0000.02715.81
7.1.150.0070.01815.80
7.1.140.0030.02115.80
7.1.130.0000.02015.73
7.1.120.0030.01715.83
7.1.110.0030.02015.79
7.1.100.0070.02015.96
7.1.90.0040.02215.98
7.1.80.0000.02215.90
7.1.70.0050.01216.59
7.1.60.0020.01716.44
7.1.50.0110.01816.43
7.1.40.0030.02015.71
7.1.30.0000.02415.75
7.1.20.0000.02215.82
7.1.10.0060.01615.75
7.1.00.0050.05219.15
7.0.330.0030.02015.29
7.0.320.0030.02015.26
7.0.310.0030.01515.39
7.0.300.0090.01215.52
7.0.290.0070.01015.39
7.0.280.0100.02015.07
7.0.270.0030.01915.19
7.0.260.0000.01615.16
7.0.250.0060.01215.33
7.0.240.0070.01415.39
7.0.230.0070.01715.51
7.0.220.0070.01415.57
7.0.210.0000.01915.52
7.0.200.0060.01616.12
7.0.190.0060.01615.34
7.0.180.0060.01515.50
7.0.170.0040.02115.35
7.0.160.0030.01915.24
7.0.150.0060.01215.52
7.0.140.0020.05218.79
7.0.130.0040.01815.64
7.0.120.0040.01815.67
7.0.110.0080.05117.83
7.0.100.0080.05617.82
7.0.90.0070.04317.61
7.0.80.0070.04217.61
7.0.70.0030.03117.85
7.0.60.0050.05517.75
7.0.50.0080.04817.85
7.0.40.0150.04416.57
7.0.30.0020.04416.66
7.0.20.0060.04816.56
7.0.10.0050.05016.61
7.0.00.0080.02616.51
5.6.400.0030.28414.36
5.6.390.0070.29514.50
5.6.380.0030.33114.92
5.6.370.0070.28414.53
5.6.360.0070.31914.74
5.6.350.0100.27814.70
5.6.340.0070.29015.05
5.6.330.0100.28315.05
5.6.320.0100.26914.90
5.6.310.0030.29314.71
5.6.300.0130.31114.54
5.6.290.0030.33014.64
5.6.280.0030.34918.05
5.6.270.0100.30614.54
5.6.260.0070.31817.88
5.6.250.0080.35017.71
5.6.240.0030.33417.94
5.6.230.0050.32417.83
5.6.220.0020.28917.84
5.6.210.0100.29817.86
5.6.200.0050.29217.91
5.6.190.0100.27817.94
5.6.180.0030.28117.82
5.6.170.0030.36117.78
5.6.160.0100.32117.95
5.6.150.0120.34117.85
5.6.140.0070.36317.77
5.6.130.0080.34517.76
5.6.120.0050.32917.77
5.6.110.0120.31117.68
5.6.100.0100.35117.89
5.6.90.0070.35017.78
5.6.80.0050.31017.43
5.6.70.0050.33417.48
5.6.60.0050.31617.54
5.6.50.0050.30317.56
5.6.40.0100.32917.34
5.6.30.0070.29917.35
5.6.20.0030.35417.51
5.6.10.0050.30117.34
5.6.00.0050.32017.48
5.5.380.0070.31816.19
5.5.370.0050.30916.29
5.5.360.0080.34316.21
5.5.350.0070.33716.21
5.5.340.0070.30716.39
5.5.330.0050.32316.59
5.5.320.0050.29316.33
5.5.310.0070.34416.50
5.5.300.0080.30516.46
5.5.290.0130.37316.49
5.5.280.0070.33116.43
5.5.270.0070.39216.49
5.5.260.0080.30516.61
5.5.250.0050.32216.18
5.5.240.0050.32116.16
5.5.230.0070.34716.06
5.5.220.0100.30416.14
5.5.210.0070.33516.13
5.5.200.0050.35716.13
5.5.190.0100.34915.94
5.5.180.0080.37915.98
5.5.170.0070.30614.77
5.5.160.0130.30116.16
5.5.150.0020.31516.06
5.5.140.0050.28916.00
5.5.130.0070.30516.08
5.5.120.0080.33316.08
5.5.110.0070.27916.07
5.5.100.0030.31715.93
5.5.90.0020.29416.01
5.5.80.0050.27415.94
5.5.70.0000.31315.96
5.5.60.0070.35615.96
5.5.50.0030.33715.99
5.5.40.0000.34616.04
5.5.30.0070.34916.12
5.5.20.0080.31816.02
5.5.10.0280.36515.91
5.5.00.0100.32516.02
5.4.450.0050.35115.52
5.4.440.0030.29515.58
5.4.430.0150.32015.69
5.4.420.0070.36615.50
5.4.410.0030.30215.36
5.4.400.0100.33715.39
5.4.390.0080.37115.37
5.4.380.0050.32615.33
5.4.370.0100.30515.41
5.4.360.0120.34715.35
5.4.350.0030.36515.29
5.4.340.0100.32115.40
5.4.330.0030.31111.34
5.4.320.0120.29015.32
5.4.310.0050.28415.36
5.4.300.0180.25015.45
5.4.290.0050.30315.33
5.4.280.0050.31115.41
5.4.270.0080.30415.49
5.4.260.0050.26715.27
5.4.250.0030.28615.30
5.4.240.0030.27915.42
5.4.230.0020.33415.48
5.4.220.0120.33515.27
5.4.210.0070.29215.33
5.4.200.0050.31215.34
5.4.190.0120.32315.29
5.4.180.0070.31515.45
5.4.170.0100.30615.28
5.4.160.0100.32115.38
5.4.150.0080.34515.50
5.4.140.0050.31914.07
5.4.130.0030.32814.00
5.4.120.0080.34613.96
5.4.110.0070.31313.96
5.4.100.0070.30914.10
5.4.90.0030.35914.13
5.4.80.0030.31314.13
5.4.70.0070.35913.95
5.4.60.0100.29014.16
5.4.50.0050.35714.15
5.4.40.0120.36114.09
5.4.30.0080.35514.06
5.4.20.0030.30014.07
5.4.10.0150.24913.99
5.4.00.0070.29513.94
5.3.290.0070.27315.21
5.3.280.0000.28715.00
5.3.270.0100.29715.01
5.3.260.0100.31315.13
5.3.250.0130.31015.14
5.3.240.0100.29714.97
5.3.230.0070.33714.98
5.3.220.0030.31015.19
5.3.210.0070.32315.05
5.3.200.0070.29014.98
5.3.190.0070.31314.97
5.3.180.0100.31014.98
5.3.170.0170.30714.98
5.3.160.0170.31315.08
5.3.150.0070.31315.04
5.3.140.0100.30715.02
5.3.130.0130.33014.97
5.3.120.0030.29714.90
5.3.110.0130.22314.95
5.3.100.0000.30014.47
5.3.90.0070.25714.40
5.3.80.0100.32714.41
5.3.70.0130.32314.26
5.3.60.0000.30314.45
5.3.50.0100.25714.30
5.3.40.0100.27714.37
5.3.30.0070.31314.33
5.3.20.0100.28014.10
5.3.10.0100.30714.05
5.3.00.0070.31314.00
5.2.170.0100.30311.57
5.2.160.0130.29011.64
5.2.150.0070.34311.51
5.2.140.0030.30711.54
5.2.130.0000.31711.53
5.2.120.0030.27311.64
5.2.110.0000.34011.52
5.2.100.0370.19711.60
5.2.90.0000.31011.46
5.2.80.0030.24711.34
5.2.70.0000.30011.48
5.2.60.0000.29011.67
5.2.50.0070.32311.54
5.2.40.0000.25711.40
5.2.30.0070.30711.21
5.2.20.0000.29011.32
5.2.10.0070.37711.23
5.2.00.0100.36011.20
5.1.60.0000.49010.47
5.1.50.0030.50010.38
5.1.40.0000.57310.46
5.1.30.0000.51310.59
5.1.20.0030.48710.98
5.1.10.0070.48310.52
5.1.00.0070.48310.47
5.0.50.0000.5239.76
5.0.40.0000.5179.76
5.0.30.0070.5309.76
5.0.20.0030.5339.76
5.0.10.0070.5139.76
5.0.00.0000.5079.76
4.4.90.0030.0379.76
4.4.80.0070.0309.76
4.4.70.0100.0309.76
4.4.60.0030.0339.76
4.4.50.0070.0309.76
4.4.40.0000.0579.76
4.4.30.0030.0279.76
4.4.20.0000.0279.76
4.4.10.0070.0179.76
4.4.00.0030.0509.76
4.3.110.0070.0309.76
4.3.100.0000.0179.76
4.3.90.0030.0339.76
4.3.80.0000.0539.76
4.3.70.0030.0339.76
4.3.60.0030.0339.76
4.3.50.0070.0279.76
4.3.40.0030.0509.76
4.3.30.0000.0379.76
4.3.20.0000.0379.76
4.3.10.0030.0339.76
4.3.00.0000.0239.76

preferences:
36.58 ms | 401 KiB | 5 Q