3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo key(['ab'=>'ba']); echo ['ab'=>'ba'][0];

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)
8.3.60.0120.00316.49
8.3.50.0110.00716.46
8.3.40.0040.01118.93
8.3.30.0090.00618.84
8.3.20.0080.00020.22
8.3.10.0040.00421.80
8.3.00.0080.00017.34
8.2.180.0070.00718.54
8.2.170.0140.00722.96
8.2.160.0090.00620.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0140.00021.12
8.2.120.0050.00326.35
8.2.110.0060.00320.89
8.2.100.0050.00518.16
8.2.90.0070.00318.83
8.2.80.0030.00517.97
8.2.70.0030.00617.63
8.2.60.0000.00818.04
8.2.50.0080.00018.10
8.2.40.0000.00720.33
8.2.30.0030.00619.18
8.2.20.0000.00717.90
8.2.10.0040.00417.79
8.2.00.0050.00317.84
8.1.280.0130.00725.92
8.1.270.0050.00323.92
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0110.00019.14
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.23
8.1.190.0060.00317.10
8.1.180.0040.00418.10
8.1.170.0090.00018.99
8.1.160.0070.00018.86
8.1.150.0080.00020.47
8.1.140.0050.00319.51
8.1.130.0000.00818.63
8.1.120.0000.00717.40
8.1.110.0000.00717.16
8.1.100.0030.00517.32
8.1.90.0040.00417.32
8.1.80.0030.00517.38
8.1.70.0030.00517.33
8.1.60.0030.00617.46
8.1.50.0000.00817.24
8.1.40.0000.00717.27
8.1.30.0000.00717.54
8.1.20.0070.00017.48
8.1.10.0030.00617.37
8.1.00.0040.00417.29
8.0.300.0030.00618.77
8.0.290.0000.00816.75
8.0.280.0000.00818.31
8.0.270.0030.00317.15
8.0.260.0000.00816.80
8.0.250.0070.00016.91
8.0.240.0080.00016.93
8.0.230.0000.00716.77
8.0.220.0040.00416.80
8.0.210.0000.00716.79
8.0.200.0030.00316.96
8.0.190.0000.00816.89
8.0.180.0040.00416.86
8.0.170.0040.00416.80
8.0.160.0030.00316.70
8.0.150.0050.00316.84
8.0.140.0000.00716.80
8.0.130.0030.00313.30
8.0.120.0030.00516.73
8.0.110.0030.00316.64
8.0.100.0070.00016.80
8.0.90.0040.00416.81
8.0.80.0130.00316.70
8.0.70.0040.00416.68
8.0.60.0000.00816.86
8.0.50.0030.00416.64
8.0.30.0150.00316.94
8.0.20.0100.01017.40
8.0.10.0040.00416.92
8.0.00.0070.01016.52
7.4.330.0030.00515.55
7.4.320.0030.00316.51
7.4.300.0030.00316.44
7.4.290.0000.00816.36
7.4.280.0040.00416.45
7.4.270.0030.00316.46
7.4.260.0070.00016.46
7.4.250.0030.00616.38
7.4.240.0000.00716.47
7.4.230.0050.00216.21
7.4.220.0170.00816.48
7.4.210.0070.00716.40
7.4.200.0000.00716.36
7.4.160.0090.00716.42
7.4.150.0140.00417.40
7.4.140.0050.01217.86
7.4.130.0070.01416.27
7.4.120.0110.00616.50
7.4.110.0130.00316.65
7.4.100.0030.01516.41
7.4.90.0090.00616.33
7.4.80.0090.00919.39
7.4.70.0120.00416.29
7.4.60.0080.00816.38
7.4.50.0030.01316.41
7.4.40.0060.00916.62
7.4.30.0040.01216.25
7.4.00.0080.00714.88
7.3.330.0050.00013.27
7.3.320.0000.00512.98
7.3.310.0000.00616.20
7.3.300.0060.00016.27
7.3.290.0040.01016.27
7.3.280.0090.00916.24
7.3.270.0120.00617.40
7.3.260.0110.00616.54
7.3.250.0140.00816.42
7.3.240.0090.00916.32
7.3.230.0120.00416.48
7.3.210.0150.00616.20
7.3.200.0070.01016.14
7.3.190.0090.00816.43
7.3.180.0130.00716.27
7.3.170.0060.00916.54
7.3.160.0090.01316.27
7.3.120.0080.00414.93
7.3.110.0060.01314.61
7.3.100.0030.01314.46
7.3.90.0110.00414.87
7.3.80.0070.00714.85
7.3.70.0060.00614.52
7.3.60.0090.00614.87
7.3.50.0150.00014.66
7.3.40.0090.00314.83
7.3.30.0100.00714.50
7.3.20.0120.00316.62
7.3.10.0090.00616.73
7.3.00.0100.00716.54
7.2.330.0140.00316.18
7.2.320.0100.00716.43
7.2.310.0090.00616.50
7.2.300.0000.01716.56
7.2.290.0070.01016.45
7.2.250.0160.00314.62
7.2.240.0100.01015.00
7.2.230.0100.00314.88
7.2.220.0030.01015.19
7.2.210.0130.00314.71
7.2.200.0040.01214.97
7.2.190.0060.01214.84
7.2.180.0100.00314.74
7.2.170.0040.00714.73
7.2.60.0030.00716.77
7.1.330.0000.01315.61
7.1.320.0030.00515.67
7.1.310.0070.00715.86
7.1.300.0030.00915.96
7.1.290.0000.00915.77
7.1.280.0040.00415.51
7.1.270.0070.00715.76
7.1.260.0030.01315.80
7.1.200.0040.00415.68
7.1.70.0030.02115.25
7.1.60.0650.01133.36
7.1.50.0200.02732.84
7.1.40.1440.02134.24
7.1.30.0620.01632.45
7.1.20.0340.01732.61
7.1.10.0420.00816.61
7.1.00.0050.01916.67
7.0.200.0410.01014.86
7.0.190.0120.01016.61
7.0.180.0400.01214.20
7.0.170.0360.01016.07
7.0.160.0060.01214.51
7.0.150.0110.01115.87
7.0.140.0320.01116.27
7.0.130.0100.01316.37
7.0.120.0340.01414.60
7.0.110.0330.01514.27
7.0.100.0330.01714.29
7.0.90.0350.01116.11
7.0.80.0130.01114.29
7.0.70.0040.01616.04
7.0.60.0270.01216.08
7.0.50.0100.01016.18
7.0.40.0280.01214.57
7.0.30.0210.01816.40
7.0.20.0290.01416.17
7.0.10.0090.01216.36
7.0.00.0390.01114.55

preferences:
35.86 ms | 400 KiB | 5 Q