3v4l.org

run code in 300+ PHP versions simultaneously
<?php function iifset(&$var, $default = null) { return isset($var) ? $var : $default; } echo iifset($foo);

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)
8.3.60.0100.01018.31
8.3.50.0130.00821.99
8.3.40.0140.00318.49
8.3.30.0070.00718.58
8.3.20.0040.00418.65
8.3.10.0080.00019.08
8.3.00.0080.00021.82
8.2.180.0100.01016.32
8.2.170.0110.00422.96
8.2.160.0030.01020.52
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0030.00526.16
8.2.120.0030.00519.32
8.2.110.0030.00720.38
8.2.100.0040.00717.78
8.2.90.0080.00019.21
8.2.80.0000.00717.97
8.2.70.0000.00917.50
8.2.60.0000.00817.68
8.2.50.0030.00618.07
8.2.40.0050.00318.14
8.2.30.0040.00421.23
8.2.20.0060.00317.61
8.2.10.0070.00017.46
8.2.00.0030.00617.53
8.1.280.0120.00625.92
8.1.270.0040.00423.99
8.1.260.0030.01226.35
8.1.250.0070.00028.09
8.1.240.0030.00622.33
8.1.230.0040.00820.85
8.1.220.0050.00318.77
8.1.210.0000.00818.92
8.1.200.0060.00317.22
8.1.190.0020.00517.41
8.1.180.0030.00518.10
8.1.170.0040.00418.66
8.1.160.0000.00718.75
8.1.150.0040.00418.44
8.1.140.0000.00717.19
8.1.130.0000.00717.75
8.1.120.0040.00417.30
8.1.110.0000.00717.22
8.1.100.0000.00817.39
8.1.90.0000.00717.28
8.1.80.0050.00217.34
8.1.70.0070.00017.35
8.1.60.0000.00717.39
8.1.50.0000.00817.31
8.1.40.0000.00817.50
8.1.30.0050.00217.63
8.1.20.0000.00817.45
8.1.10.0080.00017.43
8.1.00.0000.01117.23
8.0.300.0030.00619.92
8.0.290.0030.00317.16
8.0.280.0000.00718.38
8.0.270.0070.00017.10
8.0.260.0030.00316.66
8.0.250.0040.00416.85
8.0.240.0050.00316.78
8.0.230.0040.00416.73
8.0.220.0030.00316.63
8.0.210.0000.00716.73
8.0.200.0030.00316.80
8.0.190.0030.00616.81
8.0.180.0000.00716.77
8.0.170.0040.00316.77
8.0.160.0030.00316.82
8.0.150.0030.00316.77
8.0.140.0040.00416.65
8.0.130.0030.00313.14
8.0.120.0040.00416.75
8.0.110.0070.00016.71
8.0.100.0000.00716.79
8.0.90.0040.00416.64
8.0.80.0070.00816.71
8.0.70.0040.00416.75
8.0.60.0040.00416.75
8.0.50.0000.00716.80
8.0.30.0160.01016.89
8.0.20.0080.01117.40
8.0.10.0030.00316.85
8.0.00.0080.01116.58
7.4.330.0000.00516.84
7.4.320.0000.00616.36
7.4.300.0030.00316.43
7.4.290.0040.00416.48
7.4.280.0060.00316.33
7.4.270.0030.00316.42
7.4.260.0030.00313.19
7.4.250.0000.00816.40
7.4.240.0000.00716.41
7.4.230.0030.00316.23
7.4.220.0120.00616.40
7.4.210.0140.00516.49
7.4.200.0000.00716.56
7.4.190.0040.00416.64
7.4.160.0130.00316.50
7.4.150.0130.00717.40
7.4.140.0080.01117.86
7.4.130.0110.00816.36
7.4.120.0080.00816.54
7.4.110.0130.00316.33
7.4.100.0150.00316.53
7.4.90.0120.00616.41
7.4.80.0080.00819.39
7.4.70.0060.00916.27
7.4.60.0070.01016.52
7.4.50.0000.00816.44
7.4.40.0100.00622.77
7.4.30.0080.00816.40
7.4.00.0040.01114.81
7.3.330.0020.00213.20
7.3.320.0030.00213.04
7.3.310.0070.00016.22
7.3.300.0030.00316.10
7.3.290.0070.00716.24
7.3.280.0070.00716.18
7.3.270.0100.00717.40
7.3.260.0080.00918.24
7.3.250.0070.01016.25
7.3.240.0030.01316.49
7.3.230.0070.01016.39
7.3.210.0100.00616.58
7.3.200.0070.01019.39
7.3.190.0190.00416.32
7.3.180.0110.00616.16
7.3.170.0080.00816.50
7.3.160.0000.01616.23
7.3.120.0100.00714.63
7.2.330.0090.00916.56
7.2.320.0100.00716.58
7.2.310.0110.00716.33
7.2.300.0150.00016.30
7.2.290.0030.01216.28
7.2.00.0070.00719.33
7.1.200.0070.00715.65
7.1.100.0090.00318.18
7.1.70.0030.00717.05
7.1.60.0100.01319.40
7.1.50.0230.01334.59
7.1.00.0000.06722.54
7.0.200.0140.00714.88
7.0.140.0000.07721.94
7.0.70.0070.03321.69
7.0.60.0000.03321.68
7.0.50.0030.08322.09
7.0.40.0030.07320.11
7.0.30.0070.05320.01
7.0.20.0070.08720.00
7.0.10.0030.08720.07
7.0.00.0100.08020.13
5.6.280.0000.07720.86
5.6.220.0000.03720.62
5.6.210.0030.04320.74
5.6.200.0000.08020.96
5.6.190.0000.04721.04
5.6.180.0070.08021.14
5.6.170.0070.08021.17
5.6.160.0130.07320.94
5.6.150.0030.07321.09
5.6.140.0000.08721.08
5.6.130.0030.08721.02
5.6.120.0000.08721.00
5.6.110.0100.08321.02
5.6.100.0030.08721.16
5.6.90.0130.07321.06
5.6.80.0070.08020.49
5.6.70.0070.08320.41
5.6.60.0100.06720.55
5.6.50.0030.05720.32
5.6.40.0000.06720.50
5.6.30.0030.08320.34
5.6.20.0100.07720.40
5.6.10.0030.07720.46
5.6.00.0030.06020.45
5.5.360.0030.05020.38
5.5.350.0000.05320.42
5.5.340.0000.08320.84
5.5.330.0030.04720.91
5.5.320.0000.08720.73
5.5.310.0100.07020.76
5.5.300.0030.05720.90
5.5.290.0030.09320.87
5.5.280.0030.08320.77
5.5.270.0100.06320.80
5.5.260.0070.08020.82
5.5.250.0100.07320.69
5.5.240.0070.07720.22
5.5.230.0100.07720.29
5.5.220.0000.06320.26
5.5.210.0100.07320.25
5.5.200.0030.06020.00
5.5.190.0070.07720.26
5.5.180.0030.08020.20
5.5.160.0100.06720.18
5.5.150.0070.08020.17
5.5.140.0100.05320.01
5.5.130.0100.06020.24
5.5.120.0030.08020.14
5.5.110.0170.06720.18
5.5.100.0030.07720.17
5.5.90.0030.08320.17
5.5.80.0100.07020.16
5.5.70.0000.07720.09
5.5.60.0070.07020.06
5.5.50.0030.07320.04
5.5.40.0000.06720.09
5.5.30.0130.07320.08
5.5.20.0030.08020.03
5.5.10.0070.07720.05
5.5.00.0030.08320.03
5.4.450.0070.07319.27
5.4.440.0000.07319.20
5.4.430.0070.07319.46
5.4.420.0100.06319.45
5.4.410.0070.06719.40
5.4.400.0070.06319.05
5.4.390.0030.05319.14
5.4.380.0030.06319.14
5.4.370.0030.05719.13
5.4.360.0030.07319.13
5.4.350.0070.06019.13
5.4.340.0070.07018.85
5.4.320.0070.07319.23
5.4.310.0170.06719.23
5.4.300.0100.07019.00
5.4.290.0030.07319.18
5.4.280.0000.08018.98
5.4.270.0070.06719.21
5.4.260.0030.08019.23
5.4.250.0130.07719.02
5.4.240.0030.07718.89
5.4.230.0030.06319.12
5.4.220.0000.07719.18
5.4.210.0000.07019.04
5.4.200.0030.07718.89
5.4.190.0100.06319.15
5.4.180.0030.06319.16
5.4.170.0070.06719.03
5.4.160.0130.06318.85
5.4.150.0070.06318.93
5.4.140.0000.07016.41
5.4.130.0030.07016.43
5.4.120.0030.05016.43
5.4.110.0030.07316.33
5.4.100.0100.06716.38
5.4.90.0070.06016.46
5.4.80.0000.07316.47
5.4.70.0030.05016.49
5.4.60.0030.04316.44
5.4.50.0030.07316.36
5.4.40.0030.06716.52
5.4.30.0000.07716.45
5.4.20.0070.07016.47
5.4.10.0070.06316.41
5.4.00.0030.06715.66
5.3.290.0030.07014.63
5.3.280.0100.07314.67
5.3.270.0030.07314.71
5.3.260.0100.07014.67
5.3.250.0070.06714.71
5.3.240.0070.06714.66
5.3.230.0030.07014.53
5.3.220.0030.07714.66
5.3.210.0070.07314.68
5.3.200.0070.07314.63
5.3.190.0070.07714.70
5.3.180.0000.08014.45
5.3.170.0030.05314.67
5.3.160.0030.06714.49
5.3.150.0030.07714.65
5.3.140.0070.06014.47
5.3.130.0030.07014.51
5.3.120.0100.05314.52
5.3.110.0000.04014.50
5.3.100.0070.07014.01
5.3.90.0070.06314.00
5.3.80.0100.06714.07
5.3.70.0030.07713.96
5.3.60.0000.07014.09
5.3.50.0000.07713.93
5.3.40.0070.06713.89
5.3.30.0030.06713.82
5.3.20.0000.06013.67
5.3.10.0030.07313.63
5.3.00.0030.07313.54
5.2.170.0030.06011.21
5.2.160.0070.05711.21
5.2.150.0070.05011.21
5.2.140.0000.06011.21
5.2.130.0070.05311.21
5.2.120.0030.05311.21
5.2.110.0070.05311.21
5.2.100.0030.05011.21
5.2.90.0000.05011.21
5.2.80.0030.06011.21
5.2.70.0000.06711.21
5.2.60.0070.05011.21
5.2.50.0030.06311.21
5.2.40.0100.05711.21
5.2.30.0000.06711.21
5.2.20.0000.05011.21
5.2.10.0030.06011.21
5.2.00.0030.06011.21
5.1.60.0030.05011.21
5.1.50.0030.05011.21
5.1.40.0030.04311.21
5.1.30.0070.04711.21
5.1.20.0100.04311.21
5.1.10.0170.05011.21
5.1.00.0030.05311.21
5.0.50.0030.03311.21
5.0.40.0000.04711.21
5.0.30.0030.06011.21
5.0.20.0070.03311.21
5.0.10.0070.04011.21
5.0.00.0000.06711.21
4.4.90.0000.03311.21
4.4.80.0070.03011.21
4.4.70.0030.02711.21
4.4.60.0030.02311.21
4.4.50.0030.03011.21
4.4.40.0030.04711.21
4.4.30.0000.02311.21
4.4.20.0000.04011.21
4.4.10.0030.03311.21
4.4.00.0030.05711.21
4.3.110.0000.03311.21
4.3.100.0030.03311.21
4.3.90.0000.03011.21
4.3.80.0000.05311.21
4.3.70.0000.03311.21
4.3.60.0070.03011.21
4.3.50.0030.03011.21
4.3.40.0030.05011.21
4.3.30.0030.03311.21
4.3.20.0000.02311.21
4.3.10.0000.03711.21
4.3.00.0000.03711.21

preferences:
37.21 ms | 401 KiB | 5 Q