3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = array(0=>"fqcn", 2 => "a"); $a2 = array(0=>new stdClass(),1=>"a",2=>"b"); print_r(array_merge($a1,$a2)); print_r($a1+$a2); print_r($a2+$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)
8.3.60.0110.01118.43
8.3.50.0140.00716.39
8.3.40.0100.01018.92
8.3.30.0040.01118.75
8.3.20.0040.00420.21
8.3.10.0080.00021.69
8.3.00.0000.00820.94
8.2.180.0070.00718.41
8.2.170.0000.01522.96
8.2.160.0130.00322.30
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00422.21
8.2.120.0000.00726.35
8.2.110.0060.00322.25
8.2.100.0070.00418.00
8.2.90.0040.00419.23
8.2.80.0090.00018.04
8.2.70.0030.00617.63
8.2.60.0000.00817.92
8.2.50.0060.00318.10
8.2.40.0000.00822.27
8.2.30.0040.00419.18
8.2.20.0000.00718.04
8.2.10.0000.00818.11
8.2.00.0060.00318.07
8.1.280.0170.00325.92
8.1.270.0040.00423.84
8.1.260.0050.00326.35
8.1.250.0050.00228.09
8.1.240.0090.00020.91
8.1.230.0110.00019.22
8.1.220.0040.00417.78
8.1.210.0080.00018.77
8.1.200.0130.00017.10
8.1.190.0030.00617.00
8.1.180.0000.00718.10
8.1.170.0040.00418.55
8.1.160.0030.00518.72
8.1.150.0070.00020.00
8.1.140.0020.00519.50
8.1.130.0000.00718.69
8.1.120.0000.00717.38
8.1.110.0060.00317.40
8.1.100.0000.00717.29
8.1.90.0000.01117.46
8.1.80.0030.00517.30
8.1.70.0070.00017.36
8.1.60.0040.00417.41
8.1.50.0060.00317.48
8.1.40.0050.00517.32
8.1.30.0070.00017.55
8.1.20.0040.00417.50
8.1.10.0030.00517.42
8.1.00.0080.00017.39
8.0.300.0050.00518.77
8.0.290.0040.00416.63
8.0.280.0000.00718.42
8.0.270.0030.00317.08
8.0.260.0030.00318.41
8.0.250.0030.00316.87
8.0.240.0040.00416.97
8.0.230.0040.00416.85
8.0.220.0000.00716.77
8.0.210.0040.00416.92
8.0.200.0110.00016.84
8.0.190.0040.00417.01
8.0.180.0000.00716.90
8.0.170.0040.00416.97
8.0.160.0070.00016.75
8.0.150.0000.00716.92
8.0.140.0000.00716.82
8.0.130.0030.00313.27
8.0.120.0000.00816.77
8.0.110.0040.00416.88
8.0.100.0040.00416.82
8.0.90.0000.00817.00
8.0.80.0090.00616.76
8.0.70.0040.00416.77
8.0.60.0030.00516.74
8.0.50.0040.00416.77
8.0.30.0110.00916.96
8.0.20.0120.00817.40
8.0.10.0030.00617.02
8.0.00.0090.00916.90
7.4.330.0000.00515.55
7.4.320.0030.00316.49
7.4.300.0030.00316.35
7.4.290.0040.00416.52
7.4.280.0000.00816.56
7.4.270.0070.00016.51
7.4.260.0060.00313.13
7.4.250.0000.00716.52
7.4.240.0000.00716.58
7.4.230.0070.00016.55
7.4.220.0100.01016.38
7.4.210.0110.00316.47
7.4.200.0030.00516.50
7.4.160.0100.00616.54
7.4.150.0040.01217.40
7.4.140.0110.01117.86
7.4.130.0090.01316.63
7.4.120.0130.00516.44
7.4.110.0030.01416.15
7.4.100.0170.00716.45
7.4.90.0070.01016.39
7.4.80.0120.00919.39
7.4.70.0060.00916.39
7.4.60.0060.01016.34
7.4.50.0050.00816.45
7.4.40.0070.01016.18
7.4.30.0040.02116.60
7.4.00.0070.00714.95
7.3.330.0020.00213.18
7.3.320.0000.00613.02
7.3.310.0030.00316.24
7.3.300.0040.00416.27
7.3.290.0080.00616.27
7.3.280.0060.01016.25
7.3.270.0070.01317.40
7.3.260.0100.00716.39
7.3.250.0120.00516.39
7.3.240.0120.00616.27
7.3.230.0120.00916.25
7.3.210.0130.00316.47
7.3.200.0070.01016.23
7.3.190.0110.00616.66
7.3.180.0030.01216.31
7.3.170.0080.00816.27
7.3.160.0120.00316.46
7.3.120.0060.01314.53
7.3.110.0120.00314.91
7.3.100.0060.00914.88
7.3.90.0000.01214.54
7.3.80.0000.00914.87
7.3.70.0040.01214.97
7.3.60.0030.00914.56
7.3.50.0040.01114.80
7.3.40.0110.00314.71
7.3.30.0040.01014.57
7.3.20.0060.00616.80
7.3.10.0140.00016.37
7.3.00.0090.00616.49
7.2.330.0120.00716.70
7.2.320.0170.00716.53
7.2.310.0030.01316.54
7.2.300.0030.01316.50
7.2.290.0060.01116.70
7.2.240.0110.00814.88
7.2.230.0100.00015.02
7.2.220.0030.01214.86
7.2.210.0060.00815.05
7.2.200.0060.00915.18
7.2.190.0070.00715.11
7.2.180.0040.00815.10
7.2.170.0040.00715.04
7.2.160.0140.00315.00
7.2.150.0120.00616.91
7.2.140.0100.00716.87
7.2.130.0110.00416.93
7.2.120.0060.00916.47
7.2.110.0070.00816.59
7.2.100.0150.01016.68
7.2.90.0120.00916.84
7.2.80.0170.00216.74
7.2.70.0120.00616.60
7.2.60.0110.01016.75
7.2.50.0080.00916.80
7.2.40.0070.00816.70
7.2.30.0110.00516.96
7.2.20.0130.00516.50
7.2.10.0140.00716.66
7.2.00.0070.00817.72
7.1.330.0100.00715.84
7.1.320.0090.00615.79
7.1.310.0090.00315.84
7.1.300.0140.00015.75
7.1.290.0040.00415.58
7.1.280.0070.00715.77
7.1.270.0000.00815.87
7.1.260.0000.01615.69
7.1.250.0060.00615.53
7.1.230.0100.00515.58
7.1.220.0090.00915.76
7.1.210.0130.00015.82
7.1.200.0080.00915.73
7.1.190.0130.00915.50
7.1.180.0180.01115.82
7.1.170.0150.00715.62
7.1.160.0150.00315.42
7.1.150.0140.01415.68
7.1.140.0100.00815.71
7.1.130.0080.00815.78
7.1.120.0080.00515.81
7.1.110.0060.00815.83
7.1.100.0080.01316.93
7.1.90.0520.00615.58
7.1.80.0170.00015.77
7.1.70.0070.00616.33
7.1.60.0360.01024.47
7.1.50.0510.01024.44
7.1.40.0370.00724.14
7.1.30.0390.00823.98
7.1.20.0460.01224.15
7.1.10.0270.01115.14
7.1.00.0500.01315.37
7.0.310.0260.00415.20
7.0.300.0140.00715.35
7.0.290.0130.00915.03
7.0.280.0220.00315.15
7.0.270.0110.00715.34
7.0.260.0110.00715.46
7.0.250.0190.00315.52
7.0.240.0120.00315.47
7.0.230.0140.00415.36
7.0.220.0200.00015.08
7.0.210.0110.00415.41
7.0.200.0740.01014.92
7.0.190.0380.00714.90
7.0.180.0260.00714.76
7.0.170.0430.01014.92
7.0.160.0470.00615.04
7.0.150.0280.00814.72
7.0.140.0340.00614.94
7.0.130.0290.00514.91
7.0.120.0300.00715.04
7.0.110.0270.01015.06
7.0.100.0260.00814.89
7.0.90.0240.01014.96
7.0.80.0280.00814.79
7.0.70.0270.00914.83
7.0.60.0270.00714.67
7.0.50.0270.00814.89
7.0.40.0370.01013.98
7.0.30.0310.00614.06
7.0.20.0430.00513.86
7.0.10.0290.00713.76
7.0.00.0250.01013.85
5.6.380.0080.00814.71

preferences:
56.68 ms | 401 KiB | 5 Q