3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'name' => 'a', '1' => 'null' ); $b = array( 'name' => 'b', 1 => 'zero' ); $c = array( 'name' => 'c', '1' => 'zeronull' ); var_dump($a); var_dump($b); var_dump(array_merge($a, $b)); var_dump(array_merge($a, $c)); var_dump(array_merge($a, $b, $c)); var_dump($a + $b);

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)
8.3.60.0100.01018.18
8.3.50.0130.00721.02
8.3.40.0150.00018.57
8.3.30.0090.00618.77
8.3.20.0050.00320.34
8.3.10.0000.00822.12
8.3.00.0050.00220.64
8.2.180.0070.01116.35
8.2.170.0100.01022.96
8.2.160.0000.01419.21
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00419.36
8.2.110.0060.00321.96
8.2.100.0060.00619.64
8.2.90.0030.00518.88
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0030.00617.80
8.2.50.0080.00018.07
8.2.40.0030.00618.03
8.2.30.0000.00717.92
8.2.20.0040.00417.53
8.2.10.0060.00317.72
8.2.00.0070.00317.73
8.1.280.0110.00425.92
8.1.270.0120.00022.24
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.95
8.1.230.0060.00619.10
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0070.00317.23
8.1.190.0040.00417.53
8.1.180.0080.00018.49
8.1.170.0000.00918.39
8.1.160.0070.00022.14
8.1.150.0040.00418.57
8.1.140.0000.00817.22
8.1.130.0070.00017.73
8.1.120.0050.00217.41
8.1.110.0000.00817.37
8.1.100.0000.00817.29
8.1.90.0000.00717.42
8.1.80.0030.00617.40
8.1.70.0070.00017.29
8.1.60.0090.00017.42
8.1.50.0060.00317.40
8.1.40.0030.00517.48
8.1.30.0080.00017.58
8.1.20.0040.00417.61
8.1.10.0040.00417.32
8.1.00.0040.00417.39
8.0.300.0000.00818.77
8.0.290.0000.00717.18
8.0.280.0070.00018.28
8.0.270.0040.00417.11
8.0.260.0000.00716.78
8.0.250.0030.00316.98
8.0.240.0030.00316.91
8.0.230.0070.00016.98
8.0.220.0030.00316.93
8.0.210.0000.00716.89
8.0.200.0030.00316.95
8.0.190.0000.00716.98
8.0.180.0030.00416.94
8.0.170.0040.00416.89
8.0.160.0000.00816.84
8.0.150.0000.00716.80
8.0.140.0040.00416.88
8.0.130.0030.00313.31
8.0.120.0050.00316.86
8.0.110.0030.00316.93
8.0.100.0000.00716.88
8.0.90.0000.00716.67
8.0.80.0090.00916.86
8.0.70.0000.00816.88
8.0.60.0000.00716.92
8.0.50.0040.00416.77
8.0.30.0110.01017.01
8.0.20.0080.01117.40
8.0.10.0040.00416.93
8.0.00.0140.00716.74
7.4.330.0020.00215.00
7.4.320.0000.00816.45
7.4.300.0030.00316.39
7.4.290.0000.00616.51
7.4.280.0030.00316.51
7.4.270.0030.00516.46
7.4.260.0000.00616.43
7.4.250.0040.00416.39
7.4.240.0020.00616.34
7.4.230.0000.00716.60
7.4.220.0070.01016.47
7.4.210.0100.00516.49
7.4.200.0040.00416.23
7.4.190.0000.00816.66
7.4.160.0070.01016.60
7.4.150.0140.00417.40
7.4.140.0120.00917.86
7.4.130.0120.00716.37
7.4.120.0090.00816.39
7.4.110.0070.01016.30
7.4.100.0070.01316.36
7.4.90.0060.01216.47
7.4.80.0130.00919.39
7.4.70.0170.00416.32
7.4.60.0030.01316.38
7.4.50.0040.00416.23
7.4.40.0060.00922.77
7.4.30.0030.01416.57
7.4.00.0070.01014.80
7.3.330.0000.00513.00
7.3.320.0060.00013.10
7.3.310.0020.00516.28
7.3.300.0000.00716.05
7.3.290.0100.00316.22
7.3.280.0090.00816.25
7.3.270.0160.00017.40
7.3.260.0120.00916.21
7.3.250.0120.00816.27
7.3.240.0170.00016.20
7.3.230.0090.01616.39
7.3.210.0120.00616.16
7.3.200.0030.01419.39
7.3.190.0170.00316.13
7.3.180.0100.01016.20
7.3.170.0120.00616.27
7.3.160.0130.00916.31
7.3.120.0030.01014.79
7.3.10.0040.00816.52
7.3.00.0030.00916.58
7.2.330.0100.00716.57
7.2.320.0070.01116.24
7.2.310.0140.00416.25
7.2.300.0070.01016.54
7.2.290.0040.01216.52
7.2.130.0040.00816.67
7.2.120.0040.00816.79
7.2.110.0100.00316.79
7.2.100.0070.00716.73
7.2.90.0080.00316.68
7.2.80.0100.00316.84
7.2.70.0140.00016.78
7.2.60.0060.00616.73
7.2.50.0000.01316.58
7.2.40.0140.00316.83
7.2.30.0090.00016.70
7.2.20.0040.01216.54
7.2.10.0000.00916.73
7.2.00.0110.00016.82
7.1.250.0060.00315.52
7.1.100.0030.00617.91
7.1.70.0040.00817.20
7.1.60.0110.01419.82
7.1.50.0060.01516.96
7.1.00.0070.07722.33
7.0.200.0070.00016.88
7.0.140.0000.07722.15
7.0.60.0030.07719.89
7.0.50.0170.07717.84
7.0.40.0030.04320.26
7.0.30.0300.08020.21
7.0.20.0230.04720.19
7.0.10.0230.05720.16
7.0.00.0070.07020.21
5.6.280.0030.07321.09
5.6.210.0030.07020.53
5.6.200.0030.06318.11
5.6.190.0000.09020.41
5.6.180.3330.04320.41
5.6.170.0270.08020.54
5.6.160.0130.08020.54
5.6.150.0070.03718.21
5.6.140.0000.06018.11
5.6.130.0100.03318.11
5.6.120.0100.05021.00
5.6.110.0200.03720.95
5.6.100.0030.08721.00
5.6.90.0030.08320.96
5.6.80.0030.05720.53
5.6.70.4300.03720.34
5.5.350.0170.04720.34
5.5.340.0070.07018.04
5.5.330.0170.04720.23
5.5.320.0300.06320.20
5.5.310.0230.04020.32
5.5.300.0070.03717.98
5.5.290.0030.08717.96
5.5.280.0030.04020.63
5.5.270.0170.07320.61
5.5.260.0030.08320.83
5.5.250.0070.06320.46
5.5.240.0070.08320.28
5.4.450.0870.08019.63
5.4.440.0870.06319.58
5.4.430.0730.05319.62
5.4.420.0630.05719.27
5.4.410.0770.05319.50
5.4.400.0370.05018.51
5.4.390.0530.06018.62
5.4.380.0230.05318.60
5.4.370.0200.04718.68
5.4.360.0270.04018.74
5.4.350.0200.05018.50
5.4.340.0200.04718.70
5.4.320.0040.03912.45
5.4.310.0080.03712.45
5.4.300.0080.04312.46
5.4.290.0090.04112.45
5.4.280.0090.04012.35
5.4.270.0080.03812.35
5.4.260.0130.06718.99
5.4.250.0100.05318.82
5.4.240.0000.06718.75
5.4.230.0170.06718.90
5.4.220.0130.07718.91
5.4.210.0100.05718.88
5.4.200.0270.06018.91
5.4.190.0130.06318.98
5.4.180.0070.05318.79
5.4.170.0030.05318.83
5.4.160.0000.05718.80
5.4.150.0100.05318.86
5.4.140.0070.05016.50
5.4.130.0200.03316.48
5.4.120.0070.05016.20
5.4.110.0170.04316.32
5.4.100.0130.04316.42
5.4.90.0100.04716.33
5.4.80.0070.04716.31
5.4.70.0100.06716.29
5.4.60.0100.04316.46
5.4.50.0070.05016.44
5.4.40.0030.05716.40
5.4.30.0130.04716.38
5.4.20.0100.04716.34
5.4.10.0130.06316.51
5.4.00.0200.05315.85
5.3.290.0080.03812.80
5.3.280.0070.05314.53
5.3.270.0130.06014.52
5.3.260.0130.04714.70
5.3.250.0100.05014.61
5.3.240.0130.05714.65
5.3.230.0100.04714.51
5.3.220.0070.05014.58
5.3.210.0000.06014.63
5.3.200.0070.05014.61
5.3.190.0030.05714.58
5.3.180.0030.05314.43
5.3.170.0070.06314.43
5.3.160.0100.05314.58
5.3.150.0100.06014.58
5.3.140.0030.05314.55
5.3.130.0070.05314.24
5.3.120.0170.06014.56
5.3.110.0070.07314.24
5.3.100.0070.05314.05
5.3.90.0070.05713.71
5.3.80.0070.06713.89
5.3.70.0070.07313.93
5.3.60.0170.06313.85
5.3.50.0070.07013.87
5.3.40.0030.07313.72
5.3.30.0170.04713.76
5.3.20.0070.05313.70
5.3.10.0100.04713.56
5.3.00.0170.04013.73
5.2.170.0100.03711.05
5.2.160.0030.06011.07
5.2.150.0130.04711.29
5.2.140.0070.04711.25
5.2.130.0000.04311.09
5.2.120.0070.03711.03
5.2.110.0030.04311.19
5.2.100.0070.05311.11
5.2.90.0030.04311.11
5.2.80.0030.05010.85
5.2.70.0100.03710.85
5.2.60.0030.04311.07
5.2.50.0000.06311.01
5.2.40.0030.05311.02
5.2.30.0130.03311.07
5.2.20.0030.04010.79
5.2.10.0070.03710.98
5.2.00.0030.04310.62
5.1.60.0000.03710.05
5.1.50.0130.0279.76
5.1.40.0100.0279.90
5.1.30.0200.02310.41
5.1.20.0100.03310.27
5.1.10.0030.03710.12
5.1.00.0070.03310.10
5.0.50.0070.0278.63
5.0.40.0030.0278.37
5.0.30.0070.0408.10
5.0.20.0070.0308.34
5.0.10.0070.0308.23
5.0.00.0000.0578.24
4.4.90.0000.0237.29
4.4.80.0070.0177.29
4.4.70.0070.0177.29
4.4.60.0030.0207.29
4.4.50.0030.0207.29
4.4.40.0030.0337.29
4.4.30.0000.0237.29
4.4.20.0070.0237.29
4.4.10.0070.0177.29
4.4.00.0030.0337.29
4.3.110.0030.0237.29
4.3.100.0030.0207.29
4.3.90.0030.0207.29
4.3.80.0070.0407.29
4.3.70.0070.0207.29
4.3.60.0000.0237.29
4.3.50.0100.0207.29
4.3.40.0070.0277.29
4.3.30.0000.0237.29
4.3.20.0070.0177.29
4.3.10.0030.0207.29
4.3.00.0170.0237.70

preferences:
52.42 ms | 400 KiB | 5 Q