3v4l.org

run code in 300+ PHP versions simultaneously
function &myreffun($num) { return $num*$num; } $val=&myreffun(10); <?php function &globalvariables($str) { return $GLOBALS[$str]; } $number=30; $value1=$globalvariables(number); print value1."<br>"; $value1=40; print $value1."<br>"; ?>

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)
8.3.60.0140.00018.05
8.3.50.0130.00421.07
8.3.40.0140.00718.87
8.3.30.0070.00718.70
8.3.20.0110.00720.29
8.3.10.0040.00423.66
8.3.00.0030.00722.46
8.2.180.0060.01216.75
8.2.170.0110.00322.96
8.2.160.0100.00320.52
8.2.150.0000.00924.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00417.75
8.2.110.0070.00420.86
8.2.100.0070.00417.91
8.2.90.0000.00818.22
8.2.80.0030.00619.89
8.2.70.0040.00417.93
8.2.60.0060.00319.65
8.2.50.0080.00018.10
8.2.40.0000.00720.60
8.2.30.0040.00418.06
8.2.20.0040.00417.60
8.2.10.0000.00717.97
8.2.00.0040.00418.03
8.1.280.0140.00325.92
8.1.270.0000.00820.09
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.51
8.1.230.0090.00322.75
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0090.00017.23
8.1.190.0050.00517.22
8.1.180.0060.00318.10
8.1.170.0050.00318.50
8.1.160.0040.00422.05
8.1.150.0000.00818.74
8.1.140.0000.00817.45
8.1.130.0070.00017.68
8.1.120.0070.00017.39
8.1.110.0000.00717.39
8.1.100.0040.00417.43
8.1.90.0070.00017.29
8.1.80.0000.00817.38
8.1.70.0000.00717.37
8.1.60.0000.00817.53
8.1.50.0030.00617.39
8.1.40.0000.00817.42
8.1.30.0030.00617.57
8.1.20.0050.00317.64
8.1.10.0040.00417.46
8.1.00.0040.00417.45
8.0.300.0030.00520.02
8.0.290.0000.00916.75
8.0.280.0040.00418.43
8.0.270.0000.00717.34
8.0.260.0030.00317.28
8.0.250.0000.00816.82
8.0.240.0070.00016.96
8.0.230.0070.00416.93
8.0.220.0000.00716.94
8.0.210.0030.00516.93
8.0.200.0000.00616.88
8.0.190.0040.00417.01
8.0.180.0000.00816.80
8.0.170.0040.00416.88
8.0.160.0040.00416.90
8.0.150.0040.00416.84
8.0.140.0030.00316.87
8.0.130.0000.00513.39
8.0.120.0040.00416.89
8.0.110.0080.00016.89
8.0.100.0000.00716.91
8.0.90.0040.00316.76
8.0.80.0060.00916.88
8.0.70.0040.00416.80
8.0.60.0000.00716.88
8.0.50.0040.00416.93
8.0.30.0110.00916.93
8.0.20.0070.01717.40
8.0.10.0040.00417.12
8.0.00.0100.00916.72
7.4.330.0050.00015.08
7.4.320.0030.00316.31
7.4.300.0060.00016.54
7.4.290.0060.00316.57
7.4.280.0050.00216.59
7.4.270.0070.00016.50
7.4.260.0040.00416.48
7.4.250.0080.00016.57
7.4.240.0020.00516.50
7.4.230.0030.00316.26
7.4.220.0090.00916.65
7.4.210.0000.01816.46
7.4.200.0030.00316.34
7.4.160.0100.00616.56
7.4.150.0110.00817.40
7.4.140.0110.01117.86
7.4.130.0100.01016.62
7.4.120.0120.00516.50
7.4.110.0100.00716.73
7.4.100.0150.00616.61
7.4.90.0130.00616.50
7.4.80.0120.00619.39
7.4.70.0090.00916.71
7.4.60.0080.00816.43
7.4.50.0040.00416.71
7.4.40.0100.01316.66
7.4.30.0210.00016.75
7.4.00.0090.00614.62
7.3.330.0000.00513.22
7.3.320.0020.00213.32
7.3.310.0030.00316.20
7.3.300.0070.00016.28
7.3.290.0090.00916.27
7.3.280.0070.00916.34
7.3.270.0060.01217.40
7.3.260.0150.00316.37
7.3.250.0110.01216.41
7.3.240.0120.00616.30
7.3.230.0090.00916.39
7.3.210.0030.01316.38
7.3.200.0150.00719.39
7.3.190.0140.00316.50
7.3.180.0060.01116.36
7.3.170.0060.00916.67
7.3.160.0070.01016.51
7.2.330.0070.01116.43
7.2.320.0060.01016.64
7.2.310.0120.00616.49
7.2.300.0060.01316.63
7.2.290.0090.00916.67
7.2.60.0060.00616.53
7.2.00.0030.01019.54
7.1.200.0110.00415.51
7.1.100.0030.01018.14
7.1.70.0030.00616.85
7.1.60.0100.01420.03
7.1.50.0090.01516.80
7.1.00.0030.07722.27
7.0.200.0790.00614.97
7.0.60.0100.08019.97
7.0.50.0100.07317.84
7.0.40.0070.07020.13
7.0.30.0730.05720.15
7.0.20.0330.04020.19
7.0.10.0330.07320.24
7.0.00.0100.04720.25
5.6.280.0100.03321.10
5.6.210.0070.05320.50
5.6.200.0030.08718.16
5.6.190.0100.07020.56
5.6.180.0330.07020.33
5.6.170.0200.08720.52
5.6.160.0070.04320.50
5.6.150.0030.06018.12
5.6.140.0070.07318.22
5.6.130.0130.07018.15
5.6.120.0100.08321.13
5.6.110.0100.07321.12
5.6.100.0030.06021.13
5.6.90.0170.07720.98
5.6.80.0030.05020.51
5.6.70.4770.03720.37
5.5.350.0100.04720.39
5.5.340.0070.07317.95
5.5.330.0130.03320.27
5.5.320.0330.04320.25
5.5.310.0230.07720.51
5.5.300.0100.07318.00
5.5.290.0030.09018.00
5.5.280.0030.08720.85
5.5.270.0030.04020.87
5.5.260.0130.07020.79
5.5.250.0070.08320.46
5.5.240.0100.06720.16
5.4.450.0870.08719.30
5.4.440.0770.06719.61
5.4.430.0830.07019.33
5.4.420.0800.05019.30
5.4.410.0600.05719.57
5.4.400.0800.05319.21
5.4.390.0630.05719.29
5.4.380.0670.06719.06
5.4.370.0500.06719.14
5.4.360.0630.04319.11
5.4.350.0600.06018.98
5.4.340.0400.07018.99
5.4.320.0470.07019.16
5.4.310.0100.06019.12
5.4.300.0200.06019.12
5.4.290.0270.06019.01
5.4.280.0170.07319.36
5.4.270.0170.06019.30
5.4.260.0100.05719.37
5.4.250.0300.03719.26
5.4.240.0270.04718.83
5.4.230.0200.04719.09
5.4.220.0100.06019.25
5.4.210.0170.05018.95
5.4.200.0100.05716.64
5.4.190.0100.06019.11
5.4.180.0130.05019.11
5.4.170.0200.05018.82
5.4.160.0130.05318.85
5.4.150.0200.05018.82
5.4.140.0230.04716.31
5.4.130.0170.04716.67
5.4.120.0170.05316.23
5.4.110.0170.05716.50
5.4.100.0230.05016.45
5.4.90.0270.05316.59
5.4.80.0300.05316.46
5.4.70.0200.05316.65
5.4.60.0000.03716.54
5.4.50.0000.07716.42
5.4.40.0030.06716.54
5.4.30.0130.03716.53
5.4.20.0230.03716.23

preferences:
50.37 ms | 401 KiB | 5 Q