3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &func(){ static $static = 0; $static++; return $static; } $var1 =& func(); echo "var1:", $var1; // 1 func(); func(); echo "var1:", $var1; // 3 $var2 = func(); // assignment without the & echo "var2:", $var2; // 4 func(); func(); echo "var1:", $var1; // 6 echo "var2:", $var2; // still 4

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)
8.3.70.0130.00416.75
8.3.60.0000.01516.61
8.3.50.0070.00718.30
8.3.40.0140.00420.34
8.3.30.0070.00718.59
8.3.20.0040.00424.18
8.3.10.0050.00324.66
8.3.00.0070.00026.16
8.2.190.0140.00716.58
8.2.180.0090.00625.92
8.2.170.0070.00718.96
8.2.160.0090.00922.96
8.2.150.0000.00825.66
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0040.00426.16
8.2.110.0070.00322.08
8.2.100.0080.00417.72
8.2.90.0000.00817.88
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0040.00417.50
8.2.50.0000.00818.04
8.2.40.0000.00819.89
8.2.30.0040.00418.13
8.2.20.0000.00719.23
8.2.10.0040.00418.01
8.2.00.0040.00719.30
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.01023.93
8.1.230.0000.01320.96
8.1.220.0040.00417.74
8.1.210.0080.00020.95
8.1.200.0040.00817.35
8.1.190.0060.00317.36
8.1.180.0000.00818.10
8.1.170.0050.00317.62
8.1.160.0000.00719.12
8.1.150.0000.00718.57
8.1.140.0040.00417.46
8.1.130.0000.00718.98
8.1.120.0040.00717.51
8.1.110.0000.00717.38
8.1.100.0040.01217.29
8.1.90.0160.00017.35
8.1.80.0140.00317.38
8.1.70.0080.00817.38
8.1.60.0140.00617.57
8.1.50.0190.00017.32
8.1.40.0140.00517.39
8.1.30.0090.00917.57
8.1.20.0180.00017.60
8.1.10.0130.00317.39
8.1.00.0130.00717.27
8.0.300.0080.00020.16
8.0.290.0040.00416.60
8.0.280.0030.00318.43
8.0.270.0000.00716.80
8.0.260.0000.00618.45
8.0.250.0000.00716.95
8.0.240.0070.00016.89
8.0.230.0070.00716.93
8.0.220.0140.00316.75
8.0.210.0160.00016.91
8.0.200.0080.00816.80
8.0.190.0110.00416.77
8.0.180.0080.00316.88
8.0.170.0000.01116.76
8.0.160.0070.00716.81
8.0.150.0140.00316.80
8.0.140.0080.00816.83
8.0.130.0160.00016.90
8.0.120.0100.00516.86
8.0.110.0000.01316.87
8.0.100.0160.00016.65
8.0.90.0090.00616.75
8.0.80.0090.00616.78
8.0.70.0100.00716.88
8.0.60.0150.00016.83
8.0.50.0130.00316.84
8.0.30.0160.00016.72
8.0.20.0140.00316.87
8.0.10.0120.00417.03
7.4.330.0000.00415.55
7.4.320.0070.00016.52
7.4.300.0080.00316.52
7.4.290.0110.00416.36
7.4.280.0070.00716.48
7.4.270.0100.00516.57
7.4.260.0090.00616.48
7.4.250.0120.00616.39
7.4.240.0030.00816.27
7.4.230.0100.00316.56
7.4.220.0060.00616.54
7.4.210.0130.00016.52
7.4.200.0100.00516.61
7.4.190.0070.00516.50
7.4.180.0110.00016.47
7.4.160.0060.00616.70
7.4.150.0030.00616.43
7.4.140.0050.00516.29
7.4.130.0090.00316.30
7.4.120.0060.00316.19
7.4.110.0070.00416.35
7.4.100.0060.00616.57
7.4.90.0050.00916.34
7.4.80.0110.00416.45
7.4.70.0110.00316.39
7.4.60.0100.00316.43
7.4.50.0110.00316.41
7.4.40.0100.00316.38
7.4.30.0090.00416.32
7.4.20.0040.00916.44
7.4.10.0000.01316.55
7.4.00.0090.00416.34

preferences:
17.28 ms | 401 KiB | 5 Q