3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('xml' => array( 'attributes' => array( 'version' => '1.0', 'encoding' => 'utf-8', ), )); var_dump(array_merge($a['xml']['attributes'], array('test' => 'my_test_123')));

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)
8.3.60.0070.01116.63
8.3.50.0180.00317.31
8.3.40.0040.01118.73
8.3.30.0070.00718.59
8.3.20.0040.00418.60
8.3.10.0060.00320.52
8.3.00.0080.00019.26
8.2.180.0110.01116.75
8.2.170.0110.00322.96
8.2.160.0090.00621.02
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0060.00319.77
8.2.110.0060.00321.03
8.2.100.0070.00417.78
8.2.90.0030.00620.81
8.2.80.0000.00717.93
8.2.70.0070.00317.50
8.2.60.0040.00417.80
8.2.50.0060.00618.07
8.2.40.0000.00818.22
8.2.30.0070.00017.93
8.2.20.0040.00417.52
8.2.10.0080.00017.54
8.2.00.0040.00717.59
8.1.280.0120.00925.92
8.1.270.0100.00024.66
8.1.260.0000.00726.35
8.1.250.0050.00228.09
8.1.240.0060.00320.81
8.1.230.0000.01120.98
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0000.01017.10
8.1.190.0040.00417.54
8.1.180.0000.00818.10
8.1.170.0040.00418.82
8.1.160.0070.00018.87
8.1.150.0000.00718.56
8.1.140.0050.00317.37
8.1.130.0030.00317.81
8.1.120.0040.00417.41
8.1.110.0000.00717.29
8.1.100.0070.00017.29
8.1.90.0080.00017.42
8.1.80.0040.00417.36
8.1.70.0000.00817.32
8.1.60.0030.00617.54
8.1.50.0000.00717.30
8.1.40.0040.00417.44
8.1.30.0030.00617.43
8.1.20.0090.00317.55
8.1.10.0040.00417.50
8.1.00.0040.00417.43
8.0.300.0070.00019.90
8.0.290.0000.00816.63
8.0.280.0050.00318.29
8.0.270.0000.00717.22
8.0.260.0050.00216.62
8.0.250.0000.00816.78
8.0.240.0030.00616.84
8.0.230.0030.00316.90
8.0.220.0030.00316.80
8.0.210.0000.00816.80
8.0.200.0030.00316.87
8.0.190.0000.00716.80
8.0.180.0040.00416.86
8.0.170.0060.00316.83
8.0.160.0070.00016.71
8.0.150.0030.00616.75
8.0.140.0040.00416.73
8.0.130.0000.00613.25
8.0.120.0040.00416.66
8.0.110.0000.00916.93
8.0.100.0000.00716.79
8.0.90.0030.00316.69
8.0.80.0110.00316.79
8.0.70.0040.00416.88
8.0.60.0050.00316.70
8.0.50.0040.00416.78
8.0.30.0110.00716.96
8.0.20.0100.00817.10
8.0.10.0040.00416.78
8.0.00.0070.01016.71
7.4.330.0050.00012.90
7.4.320.0030.00316.36
7.4.300.0060.00016.35
7.4.290.0000.00616.42
7.4.280.0040.00416.51
7.4.270.0040.00416.52
7.4.260.0030.00313.20
7.4.250.0030.00516.55
7.4.240.0070.00016.34
7.4.230.0040.00416.34
7.4.220.0030.01616.39
7.4.210.0090.00716.47
7.4.200.0000.00816.41
7.4.190.0070.00016.70
7.4.160.0110.00616.44
7.4.150.0120.00616.52
7.4.140.0100.00716.47
7.4.130.0100.00616.42
7.4.120.0070.01016.44
7.4.110.0080.01516.30
7.4.100.0060.01016.50
7.4.90.0140.00316.35
7.4.80.0120.00616.60
7.4.70.0140.00716.29
7.4.60.0120.00616.57
7.4.50.0030.00516.46
7.4.40.0040.01116.36
7.4.30.0130.00316.27
7.4.00.0070.00814.83
7.3.330.0000.00613.07
7.3.320.0060.00013.10
7.3.310.0030.00616.25
7.3.300.0030.00316.10
7.3.290.0070.00716.24
7.3.280.0090.00816.25
7.3.270.0080.01116.28
7.3.260.0040.01416.33
7.3.250.0050.01416.24
7.3.240.0130.00616.45
7.3.230.0040.01216.50
7.3.210.0070.01016.43
7.3.200.0130.00819.39
7.3.190.0060.01016.39
7.3.180.0160.00016.57
7.3.170.0090.01416.23
7.3.160.0090.00616.14
7.3.120.0090.00914.89
7.3.110.0080.00814.53
7.3.100.0030.00914.86
7.3.90.0080.00414.80
7.3.80.0030.01414.82
7.3.70.0050.00514.86
7.3.60.0000.01614.68
7.3.50.0090.00314.79
7.3.40.0030.01314.87
7.3.30.0100.00614.86
7.3.20.0030.01216.79
7.3.10.0030.00616.87
7.3.00.0040.00716.43
7.2.330.0120.00616.40
7.2.320.0160.00016.52
7.2.310.0040.01616.55
7.2.300.0060.01116.19
7.2.290.0070.01516.63
7.2.250.0000.01815.19
7.2.240.0090.00614.96
7.2.230.0090.00615.11
7.2.220.0080.00615.03
7.2.210.0030.01214.99
7.2.200.0100.00314.84
7.2.190.0060.01014.78
7.2.180.0090.00614.95
7.2.170.0060.01114.88
7.2.00.0000.01419.40
7.1.330.0130.00015.67
7.1.320.0060.00615.77
7.1.310.0070.00316.02
7.1.300.0060.00915.89
7.1.290.0070.00715.68
7.1.280.0040.01215.76
7.1.270.0060.00915.85
7.1.260.0060.00715.64
7.1.100.0070.00717.83
7.1.70.0000.00816.78
7.1.60.0090.00619.40
7.1.50.0100.01016.57
7.1.00.0070.06322.31
7.0.200.0200.00714.38
7.0.140.0030.07022.19
7.0.120.0030.06722.05
7.0.60.0170.07719.86
7.0.50.0070.08717.78
7.0.40.0170.07320.21
7.0.30.0300.07720.01
7.0.20.0200.03720.19
7.0.10.0200.04020.17
7.0.00.0170.06320.18
5.6.280.0000.07720.90
5.6.210.0070.03720.60
5.6.200.0030.07318.12
5.6.190.0030.04720.61
5.6.180.0200.04320.47
5.6.170.0400.07020.61
5.6.160.0070.04020.48
5.6.150.0000.04718.15
5.6.140.0030.08318.16
5.6.130.0100.05018.21
5.6.120.0070.04020.97
5.6.110.0070.05321.14
5.6.100.0070.08321.13
5.6.90.0030.04321.02
5.6.80.0030.03720.41
5.6.70.0300.07720.36
5.5.350.0100.04320.43
5.5.340.0070.07318.01
5.5.330.0070.07720.23
5.5.320.0070.04720.34
5.5.310.0230.03720.50
5.5.300.0130.07717.95
5.5.290.0030.04317.88
5.5.280.0070.08720.79
5.5.270.0070.08320.86
5.5.260.0070.08720.77
5.5.250.0070.09020.46
5.5.240.0070.07320.28
5.4.450.0070.05019.41
5.4.440.0030.08019.11
5.4.430.0170.05719.23
5.4.420.0030.08019.11
5.4.410.0070.03719.38
5.4.400.0170.06719.16
5.4.390.0070.07319.18
5.4.380.0030.05719.12
5.4.370.0030.07018.78
5.4.360.0100.04319.09
5.4.350.0070.07019.14
5.4.340.0070.08018.92
5.4.320.0030.08318.88
5.4.310.0030.04718.91
5.4.300.0100.04319.09
5.4.290.0030.04019.18
5.4.280.0100.07019.08
5.4.270.0070.03719.07
5.4.260.0130.03319.14
5.4.250.0100.07318.80
5.4.240.0070.06719.17
5.4.230.0030.05318.78
5.4.220.0070.04019.19
5.4.210.0000.04018.78
5.4.200.0070.03319.13
5.4.190.0030.04318.90
5.4.180.0100.07019.18
5.4.170.0030.03719.16
5.4.160.0100.03719.06
5.4.150.0070.04318.98
5.4.140.0070.04016.36
5.4.130.0030.04016.28
5.4.120.0130.02716.37
5.4.110.0030.03716.27
5.4.100.0100.03016.35
5.4.90.0070.04316.61
5.4.80.0030.03316.22
5.4.70.0000.04016.26
5.4.60.0030.03316.34
5.4.50.0070.03016.12
5.4.40.0030.07316.28
5.4.30.0070.03716.38
5.4.20.0030.07716.38
5.4.10.0000.04016.38
5.4.00.0070.04015.81
5.3.290.0130.07014.48
5.3.280.0030.03714.55
5.3.270.0030.04014.64
5.3.260.0000.04014.42
5.3.250.0000.06714.57
5.3.240.0070.03314.54
5.3.230.0030.03714.68
5.3.220.0000.04714.58
5.3.210.0070.05014.65
5.3.200.0000.04014.51
5.3.190.0100.05314.55
5.3.180.0200.06014.65
5.3.170.0030.03714.50
5.3.160.0000.05714.58
5.3.150.0070.03314.65
5.3.140.0100.06314.49
5.3.130.0070.04314.34
5.3.120.0170.03314.47
5.3.110.0030.05314.49
5.3.100.0100.07313.91
5.3.90.0070.03713.90
5.3.80.0100.04013.83
5.3.70.0100.07013.85
5.3.60.0000.04713.94
5.3.50.0030.08013.88
5.3.40.0000.05013.73
5.3.30.0000.05713.74
5.3.20.0030.03713.62
5.3.10.0100.07013.47
5.3.00.0070.03313.58
5.2.170.0000.07010.97
5.2.160.0070.06311.08
5.2.150.0070.06011.04
5.2.140.0030.03311.14
5.2.130.0070.03711.03
5.2.120.0070.04011.04
5.2.110.0030.03010.95
5.2.100.0100.02311.00
5.2.90.0070.02711.11
5.2.80.0070.03311.25
5.2.70.0030.03711.03
5.2.60.0070.02711.05
5.2.50.0070.05710.94
5.2.40.0100.03011.00
5.2.30.0030.05711.13
5.2.20.0030.06010.93
5.2.10.0070.03010.91
5.2.00.0200.04710.71
5.1.60.0030.0309.96
5.1.50.0100.0479.96
5.1.40.0030.04310.05
5.1.30.0030.03310.48
5.1.20.0030.05310.20
5.1.10.0070.05310.04
5.1.00.0070.05010.05
5.0.50.0030.0338.56
5.0.40.0030.0438.37
5.0.30.0000.0538.17
5.0.20.0030.0238.10
5.0.10.0000.0478.22
5.0.00.0030.0678.21
4.4.90.0000.0407.78
4.4.80.0030.0337.78
4.4.70.0000.0237.78
4.4.60.0000.0377.78
4.4.50.0070.0307.78
4.4.40.0000.0577.78
4.4.30.0000.0377.78
4.4.20.0000.0307.78
4.4.10.0030.0377.78
4.4.00.0000.0277.78
4.3.110.0000.0177.78
4.3.100.0000.0207.78
4.3.90.0000.0177.78
4.3.80.0000.0437.78
4.3.70.0030.0337.78
4.3.60.0070.0307.78
4.3.50.0070.0337.78
4.3.40.0000.0407.78
4.3.30.0000.0377.78
4.3.20.0000.0237.78
4.3.10.0000.0307.78
4.3.00.0000.0407.78

preferences:
55.91 ms | 400 KiB | 5 Q