3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'name' => 'a', '0' => 'null' ); $b = array( 'name' => 'b', 0 => 'zero' ); $c = array( 'name' => 'c', '0' => 'zeronull' ); var_dump($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)
8.3.70.0150.00616.13
8.3.60.0100.01018.18
8.3.50.0080.00721.07
8.3.40.0140.00018.79
8.3.30.0110.00418.72
8.3.20.0070.00020.16
8.3.10.0000.00822.07
8.3.00.0050.00320.44
8.2.180.0180.00716.38
8.2.170.0120.00622.96
8.2.160.0120.00319.20
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0060.00326.16
8.2.120.0030.00519.24
8.2.110.0060.00320.38
8.2.100.0080.00417.66
8.2.90.0040.00419.06
8.2.80.0080.00017.97
8.2.70.0080.00017.50
8.2.60.0080.00017.90
8.2.50.0040.00418.07
8.2.40.0080.00018.22
8.2.30.0040.00417.87
8.2.20.0000.00717.53
8.2.10.0000.00817.59
8.2.00.0040.00417.74
8.1.280.0110.00425.92
8.1.270.0080.00022.01
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.66
8.1.230.0110.00019.01
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0060.00317.25
8.1.190.0000.00817.53
8.1.180.0040.00418.74
8.1.170.0040.00418.55
8.1.160.0040.00422.12
8.1.150.0070.00018.53
8.1.140.0050.00217.38
8.1.130.0080.00017.82
8.1.120.0000.00717.37
8.1.110.0000.00717.36
8.1.100.0000.00817.29
8.1.90.0000.00817.37
8.1.80.0030.00517.43
8.1.70.0000.00817.34
8.1.60.0060.00317.41
8.1.50.0040.00417.50
8.1.40.0030.00617.44
8.1.30.0000.00717.59
8.1.20.0030.00517.63
8.1.10.0000.00717.40
8.1.00.0000.00817.42
8.0.300.0050.00318.77
8.0.290.0040.00417.04
8.0.280.0000.00918.36
8.0.270.0070.00017.06
8.0.260.0030.00316.74
8.0.250.0070.00016.87
8.0.240.0000.00716.88
8.0.230.0000.00716.86
8.0.220.0000.00716.82
8.0.210.0000.00716.87
8.0.200.0000.00616.91
8.0.190.0040.00416.88
8.0.180.0030.00316.94
8.0.170.0050.00216.93
8.0.160.0000.00816.79
8.0.150.0000.00716.78
8.0.140.0030.00416.91
8.0.130.0060.00013.35
8.0.120.0000.00816.87
8.0.110.0040.00416.91
8.0.100.0040.00416.68
8.0.90.0000.00716.73
8.0.80.0100.01216.87
8.0.70.0040.00416.79
8.0.60.0000.00716.76
8.0.50.0070.00016.75
8.0.30.0100.01116.93
8.0.20.0120.00717.40
8.0.10.0000.00716.88
8.0.00.0090.00916.77
7.4.330.0000.00515.00
7.4.320.0040.00416.39
7.4.300.0000.00716.58
7.4.290.0030.00316.54
7.4.280.0030.00316.52
7.4.270.0060.00016.43
7.4.260.0000.00816.51
7.4.250.0060.00316.48
7.4.240.0030.00316.54
7.4.230.0070.00016.64
7.4.220.0160.01016.37
7.4.210.0060.00816.48
7.4.200.0070.00016.61
7.4.190.0080.00016.69
7.4.160.0100.00616.50
7.4.150.0090.00917.40
7.4.140.0120.01017.86
7.4.130.0110.00916.40
7.4.120.0100.00716.33
7.4.110.0150.00316.38
7.4.100.0090.00916.38
7.4.90.0180.00716.35
7.4.80.0060.01319.39
7.4.70.0070.01016.27
7.4.60.0060.01016.41
7.4.50.0000.00916.26
7.4.40.0050.00822.77
7.4.30.0100.01316.48
7.4.00.0030.01314.97
7.3.330.0000.00613.13
7.3.320.0000.00513.04
7.3.310.0000.00716.03
7.3.300.0000.00716.18
7.3.290.0060.00916.20
7.3.280.0100.00916.20
7.3.270.0140.00317.40
7.3.260.0050.01416.38
7.3.250.0140.00516.15
7.3.240.0140.00316.29
7.3.230.0070.01116.39
7.3.210.0130.00816.29
7.3.200.0150.00419.39
7.3.190.0160.00616.27
7.3.180.0060.00916.13
7.3.170.0070.01016.27
7.3.160.0150.00416.23
7.3.120.0060.01014.63
7.3.110.0100.01014.23
7.3.100.0040.01414.88
7.3.90.0000.01614.62
7.3.80.0060.00814.74
7.3.70.0150.00014.84
7.3.60.0060.00614.87
7.3.50.0040.01114.48
7.3.40.0090.00314.66
7.3.30.0040.00814.86
7.3.20.0070.00716.61
7.3.10.0030.00716.55
7.3.00.0040.00416.61
7.2.330.0150.00316.39
7.2.320.0190.00816.43
7.2.310.0030.01316.46
7.2.300.0040.01416.41
7.2.290.0130.01016.37
7.2.250.0040.01414.76
7.2.240.0070.01314.51
7.2.230.0080.00414.68
7.2.220.0050.00514.97
7.2.210.0030.00915.03
7.2.200.0060.00314.65
7.2.190.0060.00614.75
7.2.180.0090.00014.74
7.2.170.0070.01114.67
7.1.330.0040.01215.74
7.1.320.0030.00615.86
7.1.310.0000.01015.86
7.1.300.0000.01115.82
7.1.290.0060.00315.71
7.1.280.0060.00615.79
7.1.270.0100.00315.75
7.1.260.0090.00615.61
7.1.200.0000.01115.84
7.1.70.0070.00717.07
7.1.60.0140.01019.82
7.1.50.0140.01116.90
7.1.00.0030.07722.48
7.0.200.0040.00416.62
7.0.140.0000.07322.07
7.0.60.0030.07720.01
7.0.50.0030.05017.84
7.0.40.0100.08320.25
7.0.30.0270.04720.13
7.0.20.0230.04720.08
7.0.10.0200.03720.30
7.0.00.0070.06020.13
5.6.280.0000.07321.11
5.6.210.0030.08720.62
5.6.200.0100.08718.11
5.6.190.0170.07020.45
5.6.180.3970.04720.60
5.6.170.0370.07020.49
5.6.160.0270.03720.37
5.6.150.0070.08018.18
5.6.140.0030.05018.11
5.6.130.0070.08318.18
5.6.120.0000.09020.98
5.6.110.0100.08720.98
5.6.100.0130.08021.03
5.6.90.0000.05721.11
5.6.80.0000.04020.38
5.6.70.0230.07720.49
5.5.350.0000.07720.30
5.5.340.0030.03717.97
5.5.330.0030.04020.38
5.5.320.0330.07720.30
5.5.310.0230.03020.34
5.5.300.0070.05317.95
5.5.290.0030.04017.95
5.5.280.0030.05320.76
5.5.270.0130.08020.89
5.5.260.0070.06720.95
5.5.250.0170.07720.68
5.5.240.0170.06320.04
5.4.450.0600.08319.32
5.4.440.0600.05319.55
5.4.430.0370.04719.32
5.4.420.0670.05019.53
5.4.410.0930.04719.35
5.4.400.0370.04718.53
5.4.390.0230.05718.68
5.4.380.0230.05718.67
5.4.370.0170.05018.77
5.4.360.0070.06018.72
5.4.350.0200.05018.65
5.4.340.0070.06018.58
5.4.320.0040.03712.46
5.4.310.0110.03712.45
5.4.300.0050.03912.46
5.4.290.0090.03812.45
5.4.280.0090.03412.35
5.4.270.0080.03912.35
5.4.260.0170.06018.65
5.4.250.0100.05318.64
5.4.240.0100.05019.00
5.4.230.0130.05318.85
5.4.220.0130.07018.70
5.4.210.0130.05718.83
5.4.200.0100.04718.83
5.4.190.0100.07018.99
5.4.180.0100.05018.66
5.4.170.0070.06718.66
5.4.160.0030.06718.81
5.4.150.0100.05718.96
5.4.140.0070.05716.23
5.4.130.0100.04716.53
5.4.120.0170.04716.26
5.4.110.0170.06016.25
5.4.100.0130.06316.33
5.4.90.0100.04716.34
5.4.80.0070.06716.48
5.4.70.0030.05316.46
5.4.60.0070.07016.32
5.4.50.0070.07316.23
5.4.40.0070.05316.29
5.4.30.0030.05316.30
5.4.20.0130.04316.27
5.4.10.0230.05316.20
5.4.00.0100.04715.71
5.3.290.0060.04312.80
5.3.280.0100.06714.61
5.3.270.0170.04314.60
5.3.260.0130.07314.49
5.3.250.0130.05014.69
5.3.240.0130.06014.48
5.3.230.0000.05714.45
5.3.220.0100.05314.46
5.3.210.0130.04714.42
5.3.200.0230.05714.58
5.3.190.0030.05714.58
5.3.180.0030.06014.58
5.3.170.0100.06714.55
5.3.160.0170.06314.71
5.3.150.0200.05314.45
5.3.140.0130.06314.39
5.3.130.0070.08014.70
5.3.120.0130.05314.56
5.3.110.0200.04014.41
5.3.100.0030.05313.91
5.3.90.0070.06313.93
5.3.80.0200.05014.11
5.3.70.0100.05714.03
5.3.60.0100.06313.99
5.3.50.0070.05713.78
5.3.40.0030.06313.78
5.3.30.0170.04313.68
5.3.20.0070.05013.71
5.3.10.0030.06013.52
5.3.00.0100.05013.65
5.2.170.0070.05311.16
5.2.160.0070.05311.13
5.2.150.0070.04311.13
5.2.140.0030.06311.15
5.2.130.0100.04311.02
5.2.120.0070.05310.98
5.2.110.0100.05310.98
5.2.100.0030.04711.01
5.2.90.0070.04011.00
5.2.80.0000.05011.10
5.2.70.0070.06011.18
5.2.60.0100.04710.83
5.2.50.0000.04311.11
5.2.40.0030.04011.11
5.2.30.0030.04011.12
5.2.20.0100.03710.95
5.2.10.0030.04010.92
5.2.00.0030.04310.89
5.1.60.0000.0379.95
5.1.50.0030.03310.14
5.1.40.0100.02710.01
5.1.30.0000.04010.41
5.1.20.0030.03710.43
5.1.10.0100.04010.11
5.1.00.0030.04710.11
5.0.50.0030.0409.07
5.0.40.0100.0209.07
5.0.30.0030.0479.07
5.0.20.0030.0279.07
5.0.10.0070.0239.07
5.0.00.0100.0339.07
4.4.90.0070.0239.07
4.4.80.0070.0239.07
4.4.70.0030.0279.07
4.4.60.0000.0239.07
4.4.50.0070.0179.07
4.4.40.0070.0309.07
4.4.30.0100.0209.07
4.4.20.0070.0309.07
4.4.10.0100.0139.07
4.4.00.0030.0339.07
4.3.110.0030.0239.07
4.3.100.0030.0209.07
4.3.90.0030.0209.07
4.3.80.0070.0309.07
4.3.70.0000.0239.07
4.3.60.0000.0239.07
4.3.50.0030.0279.07
4.3.40.0000.0339.07
4.3.30.0030.0209.07
4.3.20.0030.0209.07
4.3.10.0070.0179.07
4.3.00.0170.0277.70

preferences:
68.75 ms | 401 KiB | 5 Q