3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r( array ("a" => "a") + array("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)
8.3.60.0250.00016.38
8.3.50.0070.00716.59
8.3.40.0030.01218.64
8.3.30.0070.00718.57
8.3.20.0050.00320.04
8.3.10.0040.00423.71
8.3.00.0000.00721.01
8.2.180.0070.01418.16
8.2.170.0030.01022.96
8.2.160.0000.01422.11
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0000.00822.20
8.2.120.0040.00426.35
8.2.110.0090.00020.57
8.2.100.0060.00617.72
8.2.90.0040.00419.09
8.2.80.0030.00617.97
8.2.70.0030.00517.38
8.2.60.0050.00317.80
8.2.50.0040.00418.10
8.2.40.0070.00020.50
8.2.30.0040.00420.91
8.2.20.0050.00217.82
8.2.10.0040.00417.84
8.2.00.0000.00817.95
8.1.280.0070.00725.92
8.1.270.0080.00823.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0040.00422.13
8.1.230.0100.00319.15
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.00
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0070.00018.94
8.1.150.0050.00318.86
8.1.140.0040.00419.43
8.1.130.0040.00418.66
8.1.120.0090.00017.22
8.1.110.0050.00217.31
8.1.100.0040.00417.27
8.1.90.0040.00417.21
8.1.80.0040.00417.15
8.1.70.0000.00717.17
8.1.60.0000.00717.45
8.1.50.0080.00017.37
8.1.40.0060.00317.37
8.1.30.0040.00417.34
8.1.20.0030.00517.55
8.1.10.0040.00417.27
8.1.00.0080.00017.29
8.0.300.0000.00719.96
8.0.290.0080.00016.63
8.0.280.0000.00718.29
8.0.270.0070.00017.13
8.0.260.0030.00316.77
8.0.250.0040.00416.84
8.0.240.0050.00316.67
8.0.230.0080.00016.76
8.0.220.0000.00716.81
8.0.210.0030.00316.72
8.0.200.0000.00716.80
8.0.190.0040.00816.78
8.0.180.0000.01116.72
8.0.170.0030.00316.87
8.0.160.0000.00916.69
8.0.150.0040.00416.69
8.0.140.0080.00016.68
8.0.130.0030.00313.16
8.0.120.0000.00716.69
8.0.110.0000.00816.76
8.0.100.0070.00016.75
8.0.90.0040.00416.66
8.0.80.0090.00616.73
8.0.70.0000.00716.69
8.0.60.0000.00716.85
8.0.50.0020.00516.71
8.0.30.0050.00916.94
8.0.20.0100.01117.40
8.0.10.0070.00016.98
8.0.00.0070.01116.77
7.4.330.0000.00515.55
7.4.320.0000.00616.42
7.4.300.0030.00316.39
7.4.290.0050.00316.23
7.4.280.0000.00816.37
7.4.270.0030.00416.36
7.4.260.0000.00716.43
7.4.250.0040.00416.41
7.4.240.0040.00416.28
7.4.230.0030.00316.48
7.4.220.0070.01316.33
7.4.210.0080.00916.45
7.4.200.0030.00316.19
7.4.160.0110.00516.39
7.4.150.0110.00617.40
7.4.140.0100.00817.86
7.4.130.0130.00616.36
7.4.120.0130.00616.30
7.4.110.0060.01216.16
7.4.100.0110.00716.25
7.4.90.0170.00016.21
7.4.80.0130.01019.39
7.4.70.0120.00316.27
7.4.60.0080.00816.24
7.4.50.0070.00716.31
7.4.40.0070.01116.32
7.4.30.0050.01016.41
7.4.00.0000.01714.70
7.3.330.0050.00013.01
7.3.320.0030.00312.92
7.3.310.0040.00415.98
7.3.300.0060.00016.14
7.3.290.0030.00316.04
7.3.280.0070.00916.12
7.3.270.0170.00017.40
7.3.260.0080.00816.30
7.3.250.0140.00716.32
7.3.240.0100.01116.25
7.3.230.0100.01016.11
7.3.210.0060.01216.34
7.3.200.0060.00916.46
7.3.190.0040.01116.16
7.3.180.0100.00716.24
7.3.170.0070.01016.14
7.3.160.0060.00916.47
7.2.330.0060.00916.19
7.2.320.0060.01616.40
7.2.310.0100.00616.46
7.2.300.0120.00916.34
7.2.290.0110.00516.40
7.2.60.0110.00416.66
7.2.00.0090.00619.12
7.1.200.0040.00815.36
7.1.100.0030.00917.77
7.1.70.0030.00616.98
7.1.60.0470.01733.26
7.1.50.0500.01032.98
7.1.40.0470.01732.61
7.1.30.0470.01332.43
7.1.20.0500.01032.83
7.1.10.0330.00714.59
7.1.00.0370.00714.81
7.0.200.0330.00714.73
7.0.190.0330.00714.86
7.0.180.0270.01714.33
7.0.170.0730.01314.20
7.0.160.0330.01014.19
7.0.150.0330.01014.16
7.0.140.0330.01014.30
7.0.130.0500.00714.46
7.0.120.0470.01314.47
7.0.110.0330.00714.27
7.0.100.0330.00714.34
7.0.90.0430.00314.44
7.0.80.0270.01314.47
7.0.70.0330.01014.38
7.0.60.0470.00014.07
7.0.50.0330.00714.22
7.0.40.0330.01314.62
7.0.30.0330.01014.48
7.0.20.0270.01314.46
7.0.10.0300.01014.40
7.0.00.0330.00714.39

preferences:
38.7 ms | 401 KiB | 5 Q