3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = array('a'=>'uno', 'b'=>'dos', 'c'=>'tres'); $a2 = array('b'=>'nuevo dos'); $x = array_merge($a1, $a2); var_dump($x);

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)
8.3.60.0140.00716.38
8.3.50.0130.00821.05
8.3.40.0070.00718.45
8.3.30.0090.00618.96
8.3.20.0050.00220.21
8.3.10.0000.00723.66
8.3.00.0050.00219.07
8.2.180.0150.00018.18
8.2.170.0070.00722.96
8.2.160.0060.00620.52
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0040.00421.19
8.2.110.0060.00320.47
8.2.100.0040.00717.78
8.2.90.0080.00019.18
8.2.80.0000.00819.54
8.2.70.0030.00517.63
8.2.60.0050.00317.88
8.2.50.0040.00418.07
8.2.40.0070.00318.20
8.2.30.0000.00817.99
8.2.20.0040.00417.49
8.2.10.0020.00518.05
8.2.00.0000.00917.95
8.1.280.0100.00325.92
8.1.270.0030.00520.37
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0070.00322.19
8.1.230.0060.00623.77
8.1.220.0000.00817.79
8.1.210.0030.00618.77
8.1.200.0040.00417.23
8.1.190.0040.00417.43
8.1.180.0050.00318.10
8.1.170.0030.00518.52
8.1.160.0040.00421.89
8.1.150.0000.00718.50
8.1.140.0000.00717.29
8.1.130.0070.00017.69
8.1.120.0070.00017.41
8.1.110.0040.00417.27
8.1.100.0070.00017.40
8.1.90.0030.00317.37
8.1.80.0030.00517.34
8.1.70.0000.00817.41
8.1.60.0040.00417.51
8.1.50.0000.00817.51
8.1.40.0040.00417.50
8.1.30.0080.00017.57
8.1.20.0000.00817.46
8.1.10.0070.00017.45
8.1.00.0000.00717.41
8.0.300.0050.00218.77
8.0.290.0000.00717.04
8.0.280.0000.00718.42
8.0.270.0030.00517.09
8.0.260.0000.00618.38
8.0.250.0000.00716.77
8.0.240.0030.00616.79
8.0.230.0000.00816.83
8.0.220.0000.00716.82
8.0.210.0030.00316.72
8.0.200.0000.00816.85
8.0.190.0030.00516.88
8.0.180.0040.00416.80
8.0.170.0040.00416.83
8.0.160.0000.00816.75
8.0.150.0070.00016.66
8.0.140.0030.00616.80
8.0.130.0030.00313.19
8.0.120.0040.00416.67
8.0.110.0000.00716.71
8.0.100.0040.00416.84
8.0.90.0030.00316.88
8.0.80.0130.01016.80
8.0.70.0000.00716.73
8.0.60.0000.00716.76
8.0.50.0000.00716.68
8.0.30.0080.00717.01
8.0.20.0130.00617.40
8.0.10.0040.00417.00
8.0.00.0100.00816.63
7.4.330.0020.00215.07
7.4.320.0030.00316.45
7.4.300.0000.00616.53
7.4.290.0040.00416.45
7.4.280.0040.00416.51
7.4.270.0030.00316.42
7.4.260.0040.00416.50
7.4.250.0030.00316.48
7.4.240.0000.00716.48
7.4.230.0000.00716.52
7.4.220.0090.00916.56
7.4.210.0030.01616.51
7.4.200.0070.00016.53
7.4.160.0030.01316.42
7.4.150.0100.00717.40
7.4.140.0160.00717.86
7.4.130.0110.00816.42
7.4.120.0120.00616.36
7.4.110.0120.00616.48
7.4.100.0100.01216.39
7.4.90.0100.00616.31
7.4.80.0150.00619.39
7.4.70.0130.00916.32
7.4.60.0120.00416.45
7.4.50.0000.00716.20
7.4.40.0060.01116.27
7.4.30.0070.01016.38
7.4.00.0080.00814.79
7.3.330.0070.00012.97
7.3.320.0000.00613.04
7.3.310.0000.00716.02
7.3.300.0030.00316.18
7.3.290.0090.00916.16
7.3.280.0070.01216.09
7.3.270.0180.00617.40
7.3.260.0130.00416.27
7.3.250.0100.00816.24
7.3.240.0090.00916.39
7.3.230.0100.00616.39
7.3.210.0070.01316.32
7.3.200.0090.00619.39
7.3.190.0060.01016.35
7.3.180.0120.00316.41
7.3.170.0130.00316.41
7.3.160.0120.00416.13
7.3.120.0120.00614.50
7.3.110.0090.00614.64
7.3.100.0060.00914.76
7.3.90.0030.01014.61
7.3.80.0110.00314.60
7.3.70.0090.00314.57
7.3.60.0060.00314.32
7.3.50.0080.00814.35
7.3.40.0100.00314.60
7.3.30.0060.00914.71
7.3.20.0070.00716.26
7.3.10.0030.00616.47
7.3.00.0000.00916.13
7.2.330.0120.00916.36
7.2.320.0090.01216.36
7.2.310.0140.00416.55
7.2.300.0130.00416.44
7.2.290.0080.00816.65
7.2.250.0040.01414.65
7.2.240.0100.01014.70
7.2.230.0000.01614.99
7.2.220.0080.00414.96
7.2.210.0030.01314.57
7.2.200.0070.01014.88
7.2.190.0030.00614.83
7.2.180.0070.00714.84
7.2.170.0060.00314.84
7.2.80.0130.00316.54
7.2.60.0090.00616.70
7.2.00.0040.00819.39
7.1.330.0080.00815.66
7.1.320.0060.00315.67
7.1.310.0070.00715.40
7.1.300.0110.00415.87
7.1.290.0070.00715.67
7.1.280.0040.00715.85
7.1.270.0080.00015.53
7.1.260.0080.00815.91
7.1.200.0080.00315.79
7.1.100.0000.01317.98
7.1.70.0070.00316.97
7.1.60.0070.01519.48
7.1.50.0030.00716.44
7.1.00.0070.07322.34
7.0.200.0030.00716.56
7.0.60.0100.08020.04
7.0.50.0030.06717.84
7.0.40.0070.04320.03
7.0.30.0300.07020.21
7.0.20.0200.06020.00
7.0.10.0270.07720.13
7.0.00.0030.06720.17
5.6.280.0030.07320.98
5.6.210.0170.06720.54
5.6.200.0000.05318.13
5.6.190.0070.04720.61
5.6.180.2670.03720.27
5.6.170.0270.07320.49
5.6.160.0100.07020.47
5.6.150.0100.03318.13
5.6.140.0030.08318.14
5.6.130.0070.06318.11
5.6.120.0000.05321.10
5.6.110.0030.04021.08
5.6.100.0130.08020.88
5.6.90.0030.06020.94
5.6.80.0030.04720.37
5.5.350.0330.07720.43
5.5.340.0100.08017.96
5.5.330.0070.06720.25
5.5.320.0300.06020.29
5.5.310.0270.07720.30
5.5.300.0000.05017.98
5.5.290.0100.04717.94
5.5.280.0070.05720.89
5.5.270.0130.07320.83
5.5.260.0130.06020.80
5.5.250.0030.04020.65
5.5.240.0100.08020.25
5.4.450.0270.04319.49
5.4.440.0100.05719.56
5.4.430.0130.05019.52
5.4.420.0130.05319.41
5.4.410.0030.06019.38
5.4.400.0130.04719.17
5.4.390.0030.06018.95
5.4.380.0200.04719.18
5.4.370.0070.05719.16
5.4.360.0070.05319.06
5.4.350.0130.05019.26
5.4.340.0100.05719.06
5.4.320.0170.04719.05
5.4.310.0030.06019.00
5.4.300.0170.04719.15
5.4.290.0070.05319.13
5.4.280.0100.05019.04
5.4.270.0070.05318.95
5.4.260.0230.04319.06
5.4.250.0130.05019.05
5.4.240.0170.06019.05
5.4.230.0170.04319.03
5.4.220.0200.04319.05
5.4.210.0170.04718.91
5.4.200.0100.04716.92
5.4.190.0100.05319.03
5.4.180.0100.05318.96
5.4.170.0070.05718.98
5.4.160.0130.04719.14
5.4.150.0200.04019.13
5.4.140.0030.05716.44
5.4.130.0100.05316.52
5.4.120.0130.04316.56
5.4.110.0070.05016.55
5.4.100.0130.04716.34
5.4.90.0030.05716.41
5.4.80.0070.05016.36
5.4.70.0130.04716.16
5.4.60.0130.05716.15
5.4.50.0100.04716.43
5.4.40.0100.05016.38
5.4.30.0130.04316.53
5.4.20.0100.05016.17
5.4.10.0070.05016.48
5.4.00.0030.05716.02
5.3.290.0030.06014.68
5.3.280.0070.05714.49
5.3.270.0100.05314.54
5.3.260.0100.05314.61
5.3.250.0100.05014.59
5.3.240.0130.05014.63
5.3.230.0130.04714.51
5.3.220.0170.04714.44
5.3.210.0130.05014.50
5.3.200.0100.05014.48
5.3.190.0070.05314.45
5.3.180.0030.05714.57
5.3.170.0200.04014.41
5.3.160.0070.05314.49
5.3.150.0170.05014.49
5.3.140.0200.03714.45
5.3.130.0100.05314.46
5.3.120.0030.05714.56
5.3.110.0070.05714.48
5.3.100.0130.04713.91
5.3.90.0100.06013.80
5.3.80.0030.05313.86
5.3.70.0100.04714.02
5.3.60.0170.04313.84
5.3.50.0170.04313.89
5.3.40.0100.04713.74
5.3.30.0000.05313.89
5.3.20.0100.05713.63
5.3.10.0070.05013.57
5.3.00.0100.04713.60
5.2.170.0100.04011.06
5.2.160.0000.04711.00
5.2.150.0070.04011.04
5.2.140.0000.04711.03
5.2.130.0100.03311.20
5.2.120.0030.05010.90
5.2.110.0100.03711.00
5.2.100.0000.04311.02
5.2.90.0070.04010.88
5.2.80.0030.04311.09
5.2.70.0030.04311.17
5.2.60.0070.04011.04
5.2.50.0100.03711.02
5.2.40.0000.04310.95
5.2.30.0130.03310.83
5.2.20.0130.03310.84
5.2.10.0000.04310.93
5.2.00.0200.03710.63
5.1.60.0000.0379.87
5.1.50.0070.0339.98
5.1.40.0030.0379.91
5.1.30.0070.03310.18
5.1.20.0070.03310.25
5.1.10.0070.0409.98
5.1.00.0000.0439.90
5.0.50.0100.0238.63
5.0.40.0070.0278.33
5.0.30.0000.0478.30
5.0.20.0070.0238.19
5.0.10.0030.0278.06
5.0.00.0100.0378.15
4.4.90.0000.0275.82
4.4.80.0070.0175.75
4.4.70.0030.0235.85
4.4.60.0070.0235.75
4.4.50.0000.0235.82
4.4.40.0030.0335.84
4.4.30.0000.0235.75
4.4.20.0000.0235.80
4.4.10.0000.0235.82
4.4.00.0030.0335.88
4.3.110.0000.0275.79
4.3.100.0070.0175.70
4.3.90.0030.0205.73
4.3.80.0000.0375.74
4.3.70.0030.0205.82
4.3.60.0030.0205.75
4.3.50.0070.0235.79
4.3.40.0070.0305.61
4.3.30.0000.0234.53
4.3.20.0000.0234.50
4.3.10.0030.0234.47
4.3.00.0130.01715.32

preferences:
62.97 ms | 401 KiB | 5 Q