3v4l.org

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

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)
8.3.70.0110.00718.43
8.3.60.0100.01018.17
8.3.50.0070.01417.85
8.3.40.0130.00318.61
8.3.30.0070.01018.67
8.3.20.0070.00019.36
8.3.10.0050.00223.70
8.3.00.0070.00020.56
8.2.180.0110.00718.05
8.2.170.0060.00922.96
8.2.160.0120.00322.17
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00419.83
8.2.120.0070.00026.35
8.2.110.0090.00019.38
8.2.100.0040.00717.91
8.2.90.0000.00817.75
8.2.80.0030.00517.97
8.2.70.0040.00417.93
8.2.60.0040.00418.11
8.2.50.0080.00618.10
8.2.40.0000.00919.48
8.2.30.0040.00419.11
8.2.20.0000.00818.06
8.2.10.0000.00817.86
8.2.00.0000.00817.56
8.1.280.0040.01125.92
8.1.270.0080.00022.09
8.1.260.0080.00026.35
8.1.250.0060.00328.09
8.1.240.0060.00319.13
8.1.230.0070.00417.89
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0030.00617.23
8.1.190.0000.00817.10
8.1.180.0080.00018.10
8.1.170.0000.00918.65
8.1.160.0070.00018.78
8.1.150.0080.00018.82
8.1.140.0030.00322.07
8.1.130.0070.00320.12
8.1.120.0000.00717.32
8.1.110.0050.00317.26
8.1.100.0050.00217.25
8.1.90.0000.00917.37
8.1.80.0000.00817.38
8.1.70.0050.00317.28
8.1.60.0040.00417.48
8.1.50.0060.00317.34
8.1.40.0040.00417.35
8.1.30.0000.00817.62
8.1.20.0050.00317.61
8.1.10.0040.00417.32
8.1.00.0070.00017.39
8.0.300.0000.00918.77
8.0.290.0050.00516.63
8.0.280.0040.00418.28
8.0.270.0070.00017.09
8.0.260.0060.00018.30
8.0.250.0000.01016.92
8.0.240.0030.00316.85
8.0.230.0070.00316.98
8.0.220.0030.00516.90
8.0.210.0000.01016.76
8.0.200.0060.00016.91
8.0.190.0020.00516.90
8.0.180.0000.00716.96
8.0.170.0070.00316.79
8.0.160.0000.00716.93
8.0.150.0060.00616.71
8.0.140.0040.00416.85
8.0.130.0050.00013.23
8.0.120.0000.00716.85
8.0.110.0040.00416.81
8.0.100.0000.00716.73
8.0.90.0000.00716.86
8.0.80.0070.00916.85
8.0.70.0040.00416.92
8.0.60.0000.00816.82
8.0.50.0070.00016.74
8.0.30.0120.00717.05
8.0.20.0100.00717.40
8.0.10.0080.00016.96
8.0.00.0080.01116.71
7.4.330.0050.00015.55
7.4.320.0000.00616.45
7.4.300.0070.00016.53
7.4.290.0070.00016.38
7.4.280.0000.00816.34
7.4.270.0070.00316.57
7.4.260.0070.00016.55
7.4.250.0050.00216.51
7.4.240.0070.00016.53
7.4.230.0030.00316.59
7.4.220.0070.00016.50
7.4.210.0100.00616.47
7.4.200.0000.00716.47
7.4.160.0090.00816.33
7.4.140.0110.00717.86
7.4.130.0060.01016.27
7.4.120.0120.00616.40
7.4.110.0140.01116.41
7.4.100.0030.01416.46
7.4.90.0170.00016.46
7.4.80.0120.00619.39
7.4.70.0210.00016.35
7.4.60.0060.01016.19
7.4.50.0080.00516.43
7.4.40.0130.00416.25
7.4.10.0030.01414.68
7.4.00.0070.00914.77
7.3.330.0000.00613.02
7.3.320.0060.00012.93
7.3.310.0030.00516.04
7.3.300.0030.00316.11
7.3.290.0040.00415.97
7.3.280.0110.00816.09
7.3.260.0080.01016.22
7.3.240.0120.00716.25
7.3.230.0080.00816.30
7.3.210.0090.00916.35
7.3.200.0180.00416.14
7.3.190.0110.00616.46
7.3.180.0130.00916.15
7.3.170.0090.00916.29
7.3.160.0090.00616.07
7.3.130.0080.01014.58
7.3.120.0070.01114.87
7.3.110.0060.01214.55
7.3.100.0060.00814.71
7.3.90.0080.00514.70
7.3.80.0020.01114.52
7.3.70.0060.00914.62
7.3.60.0050.00814.70
7.3.50.0090.00514.52
7.3.40.0050.00714.53
7.3.30.0080.00614.58
7.3.20.0040.01016.43
7.3.10.0040.00716.54
7.3.00.0030.00716.49
7.2.330.0070.01016.34
7.2.320.0140.01016.29
7.2.310.0030.01316.46
7.2.300.0130.00316.54
7.2.290.0090.00916.29
7.2.260.0070.01214.67
7.2.250.0070.00914.94
7.2.240.0050.00914.73
7.2.230.0050.01014.68
7.2.220.0080.00914.72
7.2.210.0060.01114.64
7.2.200.0060.00814.87
7.2.190.0070.00814.89
7.2.180.0070.00714.60
7.2.170.0030.01114.79
7.2.160.0090.00614.85
7.2.150.0000.01416.72
7.2.140.0060.00716.65
7.2.130.0060.00616.47
7.2.120.0050.00716.77
7.2.110.0250.00615.92
7.2.100.0170.00615.88
7.2.90.0180.00815.94
7.2.80.0270.00916.05
7.2.70.0240.00815.97
7.2.60.0230.00516.02
7.2.50.0260.00716.12
7.2.40.0620.00515.98
7.2.30.0300.00716.04
7.2.20.0310.00516.13
7.2.10.0300.01015.97
7.2.00.0350.00816.11
7.1.330.0030.00915.92
7.1.320.0000.01415.77
7.1.310.0040.00715.81
7.1.300.0080.00615.84
7.1.290.0050.00515.65
7.1.280.0070.00515.83
7.1.270.0040.00715.65
7.1.260.0020.00715.66
7.1.250.0020.01115.63
7.1.240.0050.00315.69
7.1.230.0170.00415.12
7.1.220.0170.00615.09
7.1.210.0170.00815.03
7.1.200.0280.00615.13
7.1.190.0170.00614.88
7.1.180.0190.00815.09
7.1.170.0250.00515.15
7.1.160.0420.00815.09
7.1.150.0200.00814.96
7.1.140.0210.00815.08
7.1.130.0350.00514.96
7.1.120.0210.01015.04
7.1.110.0230.00415.28
7.1.100.0220.00815.11
7.1.90.0190.01014.95
7.1.80.0340.00815.08
7.1.70.0340.01015.19
7.1.60.0520.00721.16
7.1.50.0320.01020.91
7.1.40.0360.00920.97
7.1.30.0310.00821.05
7.1.20.0450.01020.97
7.1.10.0290.00614.92
7.1.00.0320.00915.05
7.0.330.0040.00915.40
7.0.320.0050.00915.24
7.0.310.0050.01015.42
7.0.300.0100.00515.38
7.0.290.0050.00515.28
7.0.280.0070.00215.32
7.0.270.0030.01215.37
7.0.260.0020.01415.38
7.0.250.0070.00815.47
7.0.240.0090.00315.17
7.0.230.0070.00515.42
7.0.220.0020.01215.35
7.0.210.0060.00715.51
7.0.200.0040.00715.26
7.0.190.0080.00315.34
7.0.180.0000.00915.23
7.0.170.0030.00915.30
7.0.160.0020.01115.42
7.0.150.0030.01115.43
7.0.140.0060.00615.38
7.0.130.0080.00415.47
7.0.120.0050.00915.50
7.0.110.0020.01015.29
7.0.100.0040.00615.33
7.0.90.0030.00815.27
7.0.80.0040.00815.29
7.0.70.0090.00615.47
7.0.60.0100.00515.11
7.0.50.0100.00515.37
7.0.40.0100.00513.12
7.0.30.0060.00613.36
7.0.20.0030.00913.46
7.0.10.0090.00413.46
7.0.00.0050.00613.51
5.6.400.0090.00914.25
5.6.390.0050.01014.24
5.6.380.0040.01114.34
5.6.370.0020.00814.21
5.6.360.0050.00714.24
5.6.350.0020.01114.32
5.6.340.0030.01014.22
5.6.330.0050.00914.46
5.6.320.0050.00714.24
5.6.310.0090.00814.31
5.6.300.0090.00314.23
5.6.290.0050.00814.30
5.6.280.0090.00514.31
5.6.270.0050.00814.20
5.6.260.0040.01114.30
5.6.250.0090.00514.32
5.6.240.0070.00514.25
5.6.230.0090.00514.23
5.6.220.0060.00614.11
5.6.210.0080.00814.31
5.6.200.0030.01014.34
5.6.190.0060.00514.19
5.6.180.0070.00714.09
5.6.170.0040.00914.15
5.6.160.0080.00314.19
5.6.150.0040.00714.04
5.6.140.0060.00614.23
5.6.130.0070.00714.19
5.6.120.0070.00814.04
5.6.110.0090.00714.22
5.6.100.0070.00714.16
5.6.90.0050.00914.28
5.6.80.0080.00514.09
5.6.70.0060.00814.18
5.6.60.0030.00714.05
5.6.50.0060.00314.11
5.6.40.0020.01314.33
5.6.30.0050.00514.10
5.6.20.0060.00814.13
5.6.10.0000.01114.22
5.6.00.0090.00514.17

preferences:
47.52 ms | 401 KiB | 5 Q