3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_SESSION["referer"] = 'test'; $a = !empty($_SESSION["referer"]) ? $_SESSION["referer"] : (!empty($_SERVER["HTTP_REFERER"]) ? $_SERVER["HTTP_REFERER"] : ''); print $a;

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)
8.3.60.0000.01418.43
8.3.50.0100.00621.33
8.3.40.0110.00418.97
8.3.30.0130.00720.17
8.3.20.0000.00820.30
8.3.10.0080.00022.09
8.3.00.0040.00422.40
8.2.180.0060.00916.50
8.2.170.0210.00022.96
8.2.160.0040.01622.17
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0000.01420.64
8.2.110.0040.00419.21
8.2.100.0040.00817.72
8.2.90.0000.00819.30
8.2.80.0030.00518.05
8.2.70.0030.00517.50
8.2.60.0030.00517.91
8.2.50.0050.00318.07
8.2.40.0000.00718.21
8.2.30.0000.00719.34
8.2.20.0040.00417.68
8.2.10.0000.00717.78
8.2.00.0040.00417.84
8.1.280.0070.00725.92
8.1.270.0100.00023.99
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00322.40
8.1.230.0030.01021.05
8.1.220.0050.00318.77
8.1.210.0040.00420.93
8.1.200.0030.00617.36
8.1.190.0050.00317.39
8.1.180.0040.00418.10
8.1.170.0060.00318.59
8.1.160.0050.00218.88
8.1.150.0040.00718.69
8.1.140.0000.00717.36
8.1.130.0000.00717.82
8.1.120.0000.00717.38
8.1.110.0000.00717.41
8.1.100.0000.00717.43
8.1.90.0040.00417.36
8.1.80.0070.00017.45
8.1.70.0000.00717.36
8.1.60.0040.00417.59
8.1.50.0040.00417.41
8.1.40.0000.00717.53
8.1.30.0000.00717.51
8.1.20.0040.00417.56
8.1.10.0070.00017.61
8.1.00.0000.00817.39
8.0.300.0040.00420.02
8.0.290.0000.00717.05
8.0.280.0000.00718.43
8.0.270.0080.00016.82
8.0.260.0080.00016.70
8.0.250.0030.00316.93
8.0.240.0050.00316.92
8.0.230.0000.00616.89
8.0.220.0000.00616.88
8.0.210.0030.00316.91
8.0.200.0040.00416.97
8.0.190.0020.00516.99
8.0.180.0040.00416.91
8.0.170.0030.00516.88
8.0.160.0040.00416.79
8.0.150.0040.00416.84
8.0.140.0040.00416.80
8.0.130.0000.00613.34
8.0.120.0000.00816.84
8.0.110.0040.00416.72
8.0.100.0040.00416.77
8.0.90.0050.00216.80
8.0.80.0060.00916.78
8.0.70.0040.00416.86
8.0.60.0000.00716.95
8.0.50.0000.00816.77
8.0.30.0090.00916.94
8.0.20.0100.00917.42
8.0.10.0030.00616.79
8.0.00.0100.00816.79
7.4.330.0000.00414.93
7.4.320.0030.00316.59
7.4.300.0040.00416.41
7.4.290.0030.00316.51
7.4.280.0040.00416.59
7.4.270.0070.00016.56
7.4.260.0050.00013.28
7.4.250.0040.00416.55
7.4.240.0040.00316.58
7.4.230.0040.00416.57
7.4.220.0120.00716.71
7.4.210.0090.00416.60
7.4.200.0000.00716.31
7.4.190.0070.00016.74
7.4.160.0090.00616.37
7.4.150.0130.00317.40
7.4.140.0110.00617.86
7.4.130.0100.00716.39
7.4.120.0100.00816.54
7.4.110.0110.00716.54
7.4.100.0100.00716.63
7.4.90.0000.01716.37
7.4.80.0090.01119.39
7.4.70.0080.00816.30
7.4.60.0030.01316.48
7.4.50.0040.00416.68
7.4.40.0090.00622.77
7.4.30.0070.01016.37
7.4.00.0000.01514.97
7.3.330.0030.00313.25
7.3.320.0050.00013.25
7.3.310.0040.00416.20
7.3.300.0070.00016.30
7.3.290.0150.00616.31
7.3.280.0100.01016.33
7.3.270.0100.00717.40
7.3.260.0160.00916.41
7.3.250.0110.00916.29
7.3.240.0070.01016.32
7.3.230.0060.00916.39
7.3.210.0090.00616.33
7.3.200.0120.00919.39
7.3.190.0060.01216.34
7.3.180.0160.00616.32
7.3.170.0150.00616.49
7.3.160.0090.00916.48
7.3.120.0120.00315.06
7.2.330.0130.00316.80
7.2.320.0060.01516.38
7.2.310.0100.00616.68
7.2.300.0130.00316.68
7.2.290.0100.01016.71
7.2.60.0160.00016.98
7.2.00.0030.01019.52
7.1.200.0060.00815.62
7.1.100.0080.00318.18
7.1.70.0050.00216.83
7.1.60.0070.01719.18
7.1.50.0130.01017.04
7.1.00.0000.06322.40
7.0.200.0030.00316.75
7.0.140.0030.07322.09
7.0.100.0470.07719.92
7.0.90.0400.08319.93
7.0.80.0470.06020.16
7.0.70.0430.08019.94
7.0.60.0270.07320.04
7.0.50.0430.06720.36
7.0.40.0030.08720.04
7.0.30.0070.05320.04
7.0.20.0030.07720.19
7.0.10.0200.06020.09
7.0.00.0070.08720.03
5.6.280.0030.07320.85
5.6.250.0070.08020.59
5.6.240.0100.08720.66
5.6.230.0070.07720.59
5.6.220.0100.07320.66
5.6.210.0030.08720.61
5.6.200.0070.08321.08
5.6.190.0100.08020.93
5.6.180.0070.07721.03
5.6.170.0030.09021.02
5.6.160.0030.08721.09
5.6.150.0130.07721.02
5.6.140.0070.07720.93
5.6.130.0070.08721.04
5.6.120.0000.08721.02
5.6.110.0070.08321.07
5.6.100.0130.05720.99
5.6.90.0070.08021.01
5.6.80.0070.06320.49
5.6.70.0100.06320.39
5.6.60.0130.07320.44
5.6.50.0070.07720.32
5.6.40.0000.08320.41
5.6.30.0070.07720.30
5.6.20.0070.08020.39
5.6.10.0300.04320.52
5.6.00.0100.08020.25
5.5.380.0100.04320.51
5.5.370.0070.05020.34
5.5.360.0000.04720.55
5.5.350.0100.07720.32
5.5.340.0070.08020.82
5.5.330.0100.04320.80
5.5.320.0070.08020.74
5.5.310.0230.04320.90
5.5.300.0100.07720.91
5.5.290.0130.07720.87
5.5.280.0100.08020.61
5.5.270.0100.08020.87
5.5.260.0070.05320.63
5.5.250.0100.05020.58
5.5.240.0100.03720.15
5.5.230.0170.07320.29
5.5.220.0100.04720.24
5.5.210.0070.08320.25
5.5.200.0100.08019.95
5.5.190.0130.07320.17
5.5.180.0030.08320.20
5.5.160.0070.07720.26
5.5.150.0170.07020.27
5.5.140.0070.08020.07
5.5.130.0100.08020.26
5.5.120.0100.07720.11
5.5.110.0130.07320.26
5.5.100.0070.07720.16
5.5.90.0030.08020.06
5.5.80.0030.08020.14
5.5.70.0130.07720.14
5.5.60.0130.07320.05
5.5.50.0100.08020.14
5.5.40.0100.07019.95
5.5.30.0170.04720.05
5.5.20.0030.04720.02
5.5.10.0170.07320.05
5.5.00.0100.07320.05
5.4.450.0100.08319.38
5.4.440.0100.07719.56
5.4.430.0170.06719.11
5.4.420.0100.08019.55
5.4.410.0100.07019.01
5.4.400.0100.04718.89
5.4.390.0070.07318.97
5.4.380.0130.06719.14
5.4.370.0130.07019.13
5.4.360.0070.07719.05
5.4.350.0130.04319.25
5.4.340.0000.05319.23
5.4.320.0130.07318.79
5.4.310.0000.08719.13
5.4.300.0070.07018.98
5.4.290.0070.04319.05
5.4.280.0000.08018.84
5.4.270.0030.06719.14
5.4.260.0130.07318.98
5.4.250.0130.07319.13
5.4.240.0070.08018.81
5.4.230.0170.06018.96
5.4.220.0130.07319.07
5.4.210.0170.04018.96
5.4.200.0070.06719.11
5.4.190.0070.06019.06
5.4.180.0070.06319.08
5.4.170.0100.06719.14
5.4.160.0100.07718.94
5.4.150.0100.07319.13
5.4.140.0070.06316.33
5.4.130.0100.07016.26
5.4.120.0030.04316.26
5.4.110.0070.07316.27
5.4.100.0030.07716.18
5.4.90.0070.07316.36
5.4.80.0070.07016.45
5.4.70.0100.06716.20
5.4.60.0070.07016.34
5.4.50.0130.06316.33
5.4.40.0130.06716.48
5.4.30.0170.06016.23
5.4.20.0070.07716.42
5.4.10.0070.07316.36
5.4.00.0100.07015.78
5.3.290.0000.08714.52
5.3.280.0100.06314.57
5.3.270.0070.07014.52
5.3.260.0070.07714.59
5.3.250.0030.08314.43
5.3.240.0200.06714.55
5.3.230.0100.07014.50
5.3.220.0070.07314.57
5.3.210.0000.04714.56
5.3.200.0130.06714.57
5.3.190.0100.07314.57
5.3.180.0070.07714.41
5.3.170.0070.06714.42
5.3.160.0070.07714.56
5.3.150.0100.07314.58
5.3.140.0030.04714.52
5.3.130.0130.08014.55
5.3.120.0030.07314.54
5.3.110.0070.07314.51
5.3.100.0000.08014.00
5.3.90.0070.07014.01
5.3.80.0000.08313.98
5.3.70.0100.07313.87
5.3.60.0030.07313.96
5.3.50.0030.08313.82
5.3.40.0130.06713.82
5.3.30.0100.07313.86
5.3.20.0030.07013.82
5.3.10.0100.06713.82
5.3.00.0070.06713.82
5.2.170.0070.06013.82
5.2.160.0070.04713.82
5.2.150.0100.03313.82
5.2.140.0070.06713.82
5.2.130.0000.06313.82
5.2.120.0070.06013.82
5.2.110.0100.05713.82
5.2.100.0070.05713.82
5.2.90.0030.05013.82
5.2.80.0030.06013.82
5.2.70.0130.03013.82
5.2.60.0030.06313.82
5.2.50.0000.06313.82
5.2.40.0000.06313.82
5.2.30.0070.05713.82
5.2.20.0030.03313.82
5.2.10.0030.05313.82
5.2.00.0030.06013.82
5.1.60.0100.02713.82
5.1.50.0070.02713.82
5.1.40.0100.04713.82
5.1.30.0000.05713.82
5.1.20.0030.06013.82
5.1.10.0000.03313.82
5.1.00.0030.05713.82
5.0.50.0030.04713.82
5.0.40.0070.03713.82
5.0.30.0000.06713.82
5.0.20.0030.03313.82
5.0.10.0030.04013.82
5.0.00.0070.06013.82
4.4.90.0000.03713.82
4.4.80.0070.02313.82
4.4.70.0000.03713.82
4.4.60.0000.03713.82
4.4.50.0000.03713.82
4.4.40.0070.05013.82
4.4.30.0000.03713.82
4.4.20.0000.02313.82
4.4.10.0070.03013.82
4.4.00.0030.05313.82
4.3.110.0000.02013.82
4.3.100.0030.01713.82
4.3.90.0030.03313.82
4.3.80.0030.05013.82
4.3.70.0000.03713.82
4.3.60.0100.02713.82
4.3.50.0030.02713.82
4.3.40.0070.05013.82
4.3.30.0100.02713.82
4.3.20.0030.03313.82
4.3.10.0030.03313.82
4.3.00.0030.03013.82

preferences:
40.14 ms | 401 KiB | 5 Q