3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = ['a', 'b']; $a2 = ['b', 'c']; var_dump($a1 + $a2);

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)
8.3.60.0090.00918.14
8.3.50.0140.00317.86
8.3.40.0130.00718.67
8.3.30.0130.00618.42
8.3.20.0000.00819.08
8.3.10.0080.00023.63
8.3.00.0080.00020.55
8.2.180.0090.00918.29
8.2.170.0140.00022.96
8.2.160.0140.00022.20
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00219.64
8.2.120.0070.00026.35
8.2.110.0030.00621.03
8.2.100.0080.00417.72
8.2.90.0040.00417.63
8.2.80.0080.00017.97
8.2.70.0090.00017.80
8.2.60.0000.00817.95
8.2.50.0100.00318.10
8.2.40.0040.00419.23
8.2.30.0040.00419.17
8.2.20.0000.00718.02
8.2.10.0000.00817.86
8.2.00.0040.00417.64
8.1.280.0060.00925.92
8.1.270.0040.00423.88
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0030.00723.98
8.1.230.0030.01219.22
8.1.220.0030.00617.76
8.1.210.0050.00318.77
8.1.200.0040.00417.35
8.1.190.0000.00817.11
8.1.180.0060.00318.10
8.1.170.0060.00318.52
8.1.160.0070.00018.75
8.1.150.0000.00818.81
8.1.140.0000.00722.00
8.1.130.0000.00820.30
8.1.120.0000.00817.38
8.1.110.0000.00717.26
8.1.100.0040.00417.20
8.1.90.0030.00517.27
8.1.80.0000.00717.44
8.1.70.0040.00417.43
8.1.60.0000.00817.39
8.1.50.0040.00417.28
8.1.40.0030.00517.41
8.1.30.0040.00417.57
8.1.20.0030.00617.50
8.1.10.0000.00717.39
8.1.00.0000.00817.24
8.0.300.0000.00918.77
8.0.290.0000.00716.75
8.0.280.0070.00018.41
8.0.270.0000.00717.23
8.0.260.0000.00618.37
8.0.250.0000.00816.78
8.0.240.0030.00316.85
8.0.230.0030.00616.85
8.0.220.0040.00416.75
8.0.210.0050.00316.76
8.0.200.0000.00616.89
8.0.190.0000.00716.98
8.0.180.0040.00416.95
8.0.170.0060.00516.79
8.0.160.0040.00416.84
8.0.150.0110.00016.77
8.0.140.0040.00416.73
8.0.130.0030.00313.27
8.0.120.0000.00716.88
8.0.110.0040.00416.90
8.0.100.0070.00016.74
8.0.90.0000.00716.91
8.0.80.0120.00716.85
8.0.70.0030.00616.78
8.0.60.0050.00316.75
8.0.50.0000.00716.91
8.0.30.0150.00517.00
8.0.20.0040.01517.40
8.0.10.0060.00316.93
8.0.00.0110.00816.73
7.4.330.0030.00315.55
7.4.320.0000.00616.45
7.4.300.0050.00216.36
7.4.290.0060.00016.54
7.4.280.0000.00816.52
7.4.270.0090.00016.35
7.4.260.0000.00716.27
7.4.250.0030.00516.43
7.4.240.0020.00516.53
7.4.230.0030.00516.24
7.4.220.0030.00516.59
7.4.210.0120.00716.48
7.4.200.0030.00316.50
7.4.160.0080.00716.34
7.4.140.0120.00717.86
7.4.130.0090.00916.27
7.4.120.0090.00816.45
7.4.110.0130.00616.45
7.4.100.0120.00616.14
7.4.90.0090.00916.22
7.4.80.0030.01419.39
7.4.70.0100.00616.43
7.4.60.0030.01316.33
7.4.50.0000.01316.51
7.4.40.0070.01016.41
7.4.00.0070.00715.00
7.3.330.0060.00013.02
7.3.320.0000.00513.11
7.3.310.0000.00816.33
7.3.300.0030.00316.02
7.3.290.0030.00316.10
7.3.280.0100.00716.16
7.3.260.0110.00916.28
7.3.240.0090.00916.19
7.3.230.0060.01216.31
7.3.210.0100.00716.33
7.3.200.0110.01016.39
7.3.190.0160.00316.31
7.3.180.0070.01016.54
7.3.170.0160.00616.23
7.3.160.0070.01016.44
7.3.120.0100.01014.90
7.3.110.0130.00614.77
7.3.100.0070.01114.45
7.3.90.0030.01014.75
7.3.80.0060.00914.80
7.3.70.0060.00614.64
7.3.60.0000.01214.78
7.3.50.0000.01214.86
7.3.40.0060.00914.49
7.3.30.0030.01014.86
7.3.20.0040.01116.34
7.3.10.0110.00516.57
7.3.00.0090.00516.62
7.2.330.0070.01116.63
7.2.320.0150.00516.23
7.2.310.0110.00616.18
7.2.300.0100.00616.55
7.2.290.0030.01616.55
7.2.250.0110.00714.87
7.2.240.0040.01614.64
7.2.230.0160.00314.94
7.2.220.0070.00714.89
7.2.210.0070.00714.93
7.2.200.0060.00614.50
7.2.190.0040.01115.02
7.2.180.0030.01014.84
7.2.170.0080.00415.04
7.2.130.0050.01516.63
7.2.120.0090.00616.64
7.2.110.0150.01015.47
7.2.100.0260.00715.39
7.2.90.0240.00915.61
7.2.80.0160.00715.43
7.2.70.0200.00415.70
7.2.60.0160.00715.59
7.2.50.0220.00315.54
7.2.40.0200.01015.61
7.2.30.0220.00715.77
7.2.20.0160.00915.74
7.2.10.0650.00615.67
7.2.00.0170.00615.70
7.1.330.0070.00715.63
7.1.320.0040.00715.79
7.1.310.0040.00715.81
7.1.300.0060.00615.58
7.1.290.0090.00015.61
7.1.280.0070.00715.45
7.1.270.0040.00715.50
7.1.260.0040.01215.77
7.1.250.0090.00915.36
7.1.230.0230.00613.50
7.1.220.0240.00713.70
7.1.210.0450.00313.79
7.1.200.0220.00613.59
7.1.190.0210.00713.67
7.1.180.0250.00613.65
7.1.170.0540.00313.68
7.1.160.0310.01813.84
7.1.150.0230.01013.60
7.1.140.0280.00313.37
7.1.130.0240.00613.76
7.1.120.0270.00713.77
7.1.110.0290.00613.77
7.1.100.0280.01013.86
7.1.90.0280.00313.79
7.1.80.0260.00713.70
7.1.70.0360.00313.73
7.1.60.0460.01131.73
7.1.50.0710.00331.37
7.1.40.0440.01031.72
7.1.30.0480.00331.46
7.1.20.0420.01031.62
7.1.10.0490.00613.38
7.1.00.0310.00913.66
5.6.380.0120.00314.08

preferences:
65.04 ms | 401 KiB | 5 Q