3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [100 => 'foo']; $b = [100 => 'bar']; var_dump(array_merge($a, $b)); var_dump($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)
8.3.60.0110.01118.43
8.3.50.0140.00418.01
8.3.40.0110.00418.54
8.3.30.0070.00718.45
8.3.20.0000.00721.78
8.3.10.0000.00820.55
8.3.00.0000.00819.06
8.2.180.0060.00920.02
8.2.170.0070.00722.96
8.2.160.0150.00420.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00422.16
8.2.120.0070.00026.35
8.2.110.0070.00319.32
8.2.100.0090.00317.78
8.2.90.0080.00019.09
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0060.00317.79
8.2.50.0040.00418.10
8.2.40.0050.00322.29
8.2.30.0030.00522.18
8.2.20.0070.00017.90
8.2.10.0070.00017.93
8.2.00.0050.00218.16
8.1.280.0120.00625.92
8.1.270.0070.00023.79
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0000.00920.84
8.1.230.0120.00017.42
8.1.220.0030.00617.74
8.1.210.0060.00318.77
8.1.200.0070.00417.22
8.1.190.0080.00017.00
8.1.180.0040.00418.10
8.1.170.0070.00018.65
8.1.160.0000.00718.71
8.1.150.0040.00420.28
8.1.140.0050.00219.55
8.1.130.0050.00319.00
8.1.120.0040.00417.43
8.1.110.0000.00817.41
8.1.100.0000.00817.45
8.1.90.0030.00317.29
8.1.80.0040.00417.34
8.1.70.0030.00317.34
8.1.60.0000.00817.52
8.1.50.0000.00817.43
8.1.40.0000.00817.39
8.1.30.0000.00817.60
8.1.20.0000.00717.55
8.1.10.0060.00317.30
8.1.00.0000.00717.36
8.0.300.0000.00718.77
8.0.290.0000.00716.74
8.0.280.0070.00018.38
8.0.270.0040.00417.18
8.0.260.0000.00717.10
8.0.250.0070.00016.94
8.0.240.0070.00016.79
8.0.230.0030.00316.95
8.0.220.0030.00316.86
8.0.210.0040.00416.89
8.0.200.0070.00016.95
8.0.190.0060.00316.96
8.0.180.0030.00616.89
8.0.170.0000.00716.76
8.0.160.0060.00316.91
8.0.150.0000.00716.84
8.0.140.0040.00416.76
8.0.130.0000.00513.33
8.0.120.0080.00016.80
8.0.110.0070.00016.94
8.0.100.0020.00516.94
8.0.90.0040.00416.75
8.0.80.0050.01016.84
8.0.70.0080.00016.95
8.0.60.0050.00216.84
8.0.50.0070.00016.70
8.0.30.0090.00816.90
8.0.20.0080.01117.40
8.0.10.0040.00416.87
8.0.00.0070.01016.65
7.4.330.0030.00215.55
7.4.320.0060.00016.39
7.4.300.0060.00016.43
7.4.290.0000.00716.56
7.4.280.0000.00816.43
7.4.270.0030.00316.38
7.4.260.0000.00716.50
7.4.250.0040.00416.49
7.4.240.0000.00716.54
7.4.230.0080.00016.32
7.4.220.0160.00616.46
7.4.210.0020.01216.59
7.4.200.0040.00416.50
7.4.160.0080.00816.29
7.4.150.0030.01317.40
7.4.140.0140.00717.86
7.4.130.0100.00616.43
7.4.120.0140.00616.36
7.4.110.0070.01116.23
7.4.100.0070.01016.37
7.4.90.0040.01216.23
7.4.80.0140.00319.39
7.4.70.0180.00016.34
7.4.60.0120.00316.53
7.4.50.0040.01516.34
7.4.40.0060.01716.14
7.4.30.0130.00316.54
7.4.00.0040.01114.82
7.3.330.0000.00513.06
7.3.320.0050.00013.01
7.3.310.0070.00016.12
7.3.300.0070.00016.18
7.3.290.0000.00616.02
7.3.280.0090.01016.18
7.3.270.0090.00917.40
7.3.260.0150.00316.38
7.3.250.0050.01316.32
7.3.240.0070.01316.27
7.3.230.0130.01016.27
7.3.210.0040.01316.22
7.3.200.0150.00716.57
7.3.190.0080.00816.20
7.3.180.0120.00916.39
7.3.170.0090.00716.30
7.3.160.0100.00616.37
7.3.120.0030.01414.79
7.3.110.0030.01414.43
7.3.100.0070.01114.67
7.3.90.0090.01014.62
7.3.80.0060.00914.69
7.3.70.0070.00714.77
7.3.60.0030.00614.73
7.3.50.0030.00914.68
7.3.40.0030.01114.29
7.3.30.0050.00514.62
7.3.20.0090.00616.61
7.3.10.0060.00616.62
7.3.00.0060.00916.70
7.2.330.0030.01416.63
7.2.320.0060.01216.62
7.2.310.0060.00916.59
7.2.300.0030.02016.61
7.2.290.0060.01216.30
7.2.250.0150.00414.78
7.2.240.0160.00315.09
7.2.230.0070.01414.98
7.2.220.0060.01314.63
7.2.210.0030.01314.98
7.2.200.0000.01314.70
7.2.190.0040.01014.95
7.2.180.0160.00014.59
7.2.170.0040.01214.94
7.2.110.0190.00816.32
7.1.330.0040.01215.82
7.1.320.0040.00815.92
7.1.310.0070.01115.89
7.1.300.0000.01315.50
7.1.290.0060.00915.76
7.1.280.0060.00615.89
7.1.270.0040.00415.77
7.1.260.0130.00015.53
7.1.200.0140.00715.57
7.1.70.0030.00617.07
7.1.60.0040.01117.06
7.1.20.0230.06040.28
7.1.10.0100.06322.18
7.1.00.0070.06722.42
7.0.200.0000.01216.79
7.0.160.0200.04721.85
7.0.150.0100.06321.79
7.0.140.0130.05021.83
7.0.130.0100.05722.02
7.0.120.0130.05021.97
7.0.110.0100.07721.82
7.0.100.0070.06021.91
7.0.90.0100.06021.84
7.0.80.0100.05721.82
7.0.70.0130.05721.98
7.0.60.0100.05321.86
7.0.50.0070.05721.96
7.0.40.0100.07021.91
7.0.30.0070.05721.90
7.0.20.0100.05721.83
7.0.10.0070.05721.89
7.0.00.0070.06021.85

preferences:
60.38 ms | 401 KiB | 5 Q