3v4l.org

run code in 300+ PHP versions simultaneously
<?php $defined = 'Foo'; for( $i = 0; $i <= 10000; $i += 1 ) { var_dump( isset( $undefined ) ); }

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)
8.3.60.0100.00716.50
8.3.50.0140.00522.00
8.3.40.0130.00718.69
8.3.30.0090.01319.01
8.3.20.0110.00720.26
8.3.10.0030.00721.86
8.3.00.0060.00317.87
8.2.180.0090.00918.28
8.2.170.0230.00322.96
8.2.160.0140.00420.52
8.2.150.0080.00424.18
8.2.140.0030.00724.66
8.2.130.0100.01326.16
8.2.120.0100.00020.90
8.2.110.0120.00022.07
8.2.100.0110.00317.72
8.2.90.0080.00019.05
8.2.80.0040.00417.97
8.2.70.0000.00917.63
8.2.60.0070.00318.05
8.2.50.0120.00018.07
8.2.40.0060.00318.16
8.2.30.0000.00818.05
8.2.20.0030.00617.70
8.2.10.0040.00417.94
8.2.00.0060.00317.70
8.1.280.0110.00725.92
8.1.270.0070.00323.96
8.1.260.0100.00026.35
8.1.250.0060.00328.09
8.1.240.0040.00823.89
8.1.230.0100.00319.08
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.01017.35
8.1.190.0080.00016.98
8.1.180.0000.00918.10
8.1.170.0030.00618.55
8.1.160.0000.00822.04
8.1.150.0030.00518.92
8.1.140.0030.00617.45
8.1.130.0040.00417.89
8.1.120.0030.00617.36
8.1.110.0040.00417.36
8.1.100.0080.00017.51
8.1.90.0000.00817.50
8.1.80.0050.00317.45
8.1.70.0060.00317.34
8.1.60.0030.00717.54
8.1.50.0060.00317.52
8.1.40.0000.00817.37
8.1.30.0030.00817.51
8.1.20.0060.00317.50
8.1.10.0090.00017.52
8.1.00.0070.00317.38
8.0.300.0050.00318.77
8.0.290.0080.00516.58
8.0.280.0030.00518.32
8.0.270.0030.00717.11
8.0.260.0000.00717.19
8.0.250.0040.00416.75
8.0.240.0040.00416.80
8.0.230.0030.00616.72
8.0.220.0050.00316.69
8.0.210.0030.00616.72
8.0.200.0040.00416.82
8.0.190.0040.00416.79
8.0.180.0000.00916.78
8.0.170.0060.00316.77
8.0.160.0000.00816.76
8.0.150.0030.00516.72
8.0.140.0050.00316.73
8.0.130.0030.00313.27
8.0.120.0040.00416.77
8.0.110.0060.00316.73
8.0.100.0060.00316.76
8.0.90.0000.00916.58
8.0.80.0100.01616.66
8.0.70.0030.00516.80
8.0.60.0030.00616.57
8.0.50.0030.00616.79
8.0.30.0290.01016.95
8.0.20.0280.00917.40
8.0.10.0060.00316.86
8.0.00.0240.01216.71
7.4.330.0030.00315.06
7.4.320.0000.00816.37
7.4.300.0070.00016.32
7.4.290.0040.00416.32
7.4.280.0070.00316.41
7.4.270.0080.00016.41
7.4.260.0040.00416.39
7.4.250.0030.00616.20
7.4.240.0030.00516.36
7.4.230.0050.00316.11
7.4.220.0080.01616.41
7.4.210.0060.01816.31
7.4.200.0000.00816.22
7.4.160.0190.01916.26
7.4.150.0220.01217.40
7.4.140.0290.00617.86
7.4.130.0150.01216.34
7.4.120.0220.01216.35
7.4.110.0190.01616.22
7.4.100.0190.01616.23
7.4.90.0070.02416.21
7.4.80.0110.02619.39
7.4.70.0150.01516.35
7.4.60.0200.00616.42
7.4.50.0050.00516.28
7.4.40.0170.01016.23
7.4.30.0140.01016.34
7.4.00.0100.01014.95
7.3.330.0040.00313.11
7.3.320.0060.00012.99
7.3.310.0030.00616.12
7.3.300.0040.00415.89
7.3.290.0140.01116.14
7.3.280.0090.01516.16
7.3.270.0270.01517.40
7.3.260.0160.01616.24
7.3.240.0150.01516.18
7.3.230.0140.01116.39
7.3.210.0190.01616.09
7.3.200.0220.00619.39
7.3.190.0100.02316.28
7.3.180.0170.01016.16
7.3.170.0170.00916.30
7.3.160.0160.01316.10
7.3.120.0060.01214.69
7.2.330.0150.01816.58
7.2.320.0140.01416.35
7.2.310.0260.01216.39
7.2.300.0170.01016.34
7.2.290.0210.00316.31
7.2.00.0030.01419.41
7.1.100.0030.00918.03
7.1.70.0080.00416.80
7.1.60.0070.00719.40
7.1.50.0130.00717.04
7.0.200.0060.00316.76

preferences:
40.23 ms | 401 KiB | 5 Q