3v4l.org

run code in 300+ PHP versions simultaneously
<?php function u ($x = 'zz') { return $x; } $i = u (null); var_dump ($i);

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)
8.3.60.0090.01218.31
8.3.50.0090.01121.21
8.3.40.0070.00718.54
8.3.30.0150.00018.97
8.3.20.0050.00220.21
8.3.10.0040.00423.70
8.3.00.0000.00719.07
8.2.180.0130.00716.38
8.2.170.0070.00722.96
8.2.160.0030.01022.05
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00221.19
8.2.110.0070.00322.13
8.2.100.0060.00617.66
8.2.90.0030.00517.63
8.2.80.0000.00818.63
8.2.70.0040.00417.91
8.2.60.0040.00418.09
8.2.50.0030.00619.26
8.2.40.0060.00320.82
8.2.30.0000.00719.22
8.2.20.0040.00417.71
8.2.10.0040.00417.99
8.2.00.0000.00717.62
8.1.280.0140.00325.92
8.1.270.0030.00618.71
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00323.79
8.1.230.0040.00717.83
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0000.00917.22
8.1.190.0000.00817.10
8.1.180.0040.00419.02
8.1.170.0000.00818.65
8.1.160.0000.00719.05
8.1.150.0080.00018.73
8.1.140.0000.00717.28
8.1.130.0000.00717.85
8.1.120.0000.00717.29
8.1.110.0000.00817.28
8.1.100.0040.00417.27
8.1.90.0000.00717.38
8.1.80.0040.00417.39
8.1.70.0070.00017.39
8.1.60.0080.00017.53
8.1.50.0030.00517.49
8.1.40.0000.00717.46
8.1.30.0040.00417.62
8.1.20.0000.00817.54
8.1.10.0000.00717.48
8.1.00.0060.00717.23
8.0.300.0000.00718.91
8.0.290.0040.00416.58
8.0.280.0040.00418.37
8.0.270.0030.00317.18
8.0.260.0030.00317.23
8.0.250.0030.00316.87
8.0.240.0070.00016.88
8.0.230.0030.00316.79
8.0.220.0070.00016.72
8.0.210.0070.00016.81
8.0.200.0000.00716.84
8.0.190.0040.00416.86
8.0.180.0000.00816.75
8.0.170.0050.00316.89
8.0.160.0040.00416.83
8.0.150.0070.00016.82
8.0.140.0080.00016.80
8.0.130.0030.00313.23
8.0.120.0040.00416.76
8.0.110.0040.00416.80
8.0.100.0000.00716.76
8.0.90.0040.00416.78
8.0.80.0090.00616.82
8.0.70.0000.00716.90
8.0.60.0050.00216.79
8.0.50.0080.00016.72
8.0.30.0110.01016.83
8.0.20.0100.00917.40
8.0.10.0040.00416.89
8.0.00.0130.01016.71
7.4.330.0020.00215.03
7.4.320.0050.00316.48
7.4.300.0000.00616.48
7.4.290.0070.00016.47
7.4.280.0000.01016.34
7.4.270.0030.00316.57
7.4.260.0000.00716.49
7.4.250.0050.00316.54
7.4.240.0030.00416.49
7.4.230.0040.00416.59
7.4.220.0090.00916.45
7.4.210.0040.01516.46
7.4.200.0020.00516.69
7.4.160.0070.00716.47
7.4.150.0110.01417.40
7.4.140.0070.01417.86
7.4.130.0110.00916.44
7.4.120.0100.00716.37
7.4.110.0060.01316.36
7.4.100.0140.00716.66
7.4.90.0090.00816.32
7.4.80.0100.00719.39
7.4.70.0090.00616.63
7.4.60.0160.00016.43
7.4.50.0060.00316.55
7.4.40.0100.00716.13
7.4.30.0160.00616.31
7.4.00.0080.00814.96
7.3.330.0000.00613.17
7.3.320.0030.00313.20
7.3.310.0070.00016.23
7.3.300.0040.00416.11
7.3.290.0090.00716.23
7.3.280.0070.01016.28
7.3.270.0150.00317.40
7.3.260.0030.01416.58
7.3.250.0090.00716.20
7.3.240.0070.01016.22
7.3.230.0080.00916.50
7.3.210.0100.00716.08
7.3.200.0030.01319.39
7.3.190.0100.00716.15
7.3.180.0120.00916.42
7.3.170.0090.00816.35
7.3.160.0070.01316.44
7.3.120.0070.01014.68
7.3.110.0000.01314.91
7.3.100.0060.01014.59
7.3.90.0140.00314.83
7.3.80.0030.00914.78
7.3.70.0070.00314.68
7.3.60.0070.01014.88
7.3.50.0060.00814.41
7.3.40.0090.00314.69
7.3.30.0040.00414.75
7.3.20.0030.01216.54
7.3.10.0080.01216.49
7.3.00.0120.00716.54
7.2.330.0070.01016.48
7.2.320.0040.01716.47
7.2.310.0100.00716.46
7.2.300.0100.01416.28
7.2.290.0110.00516.39
7.2.250.0070.01114.89
7.2.240.0070.01315.16
7.2.230.0100.00615.11
7.2.220.0080.01215.04
7.2.210.0040.01214.54
7.2.200.0040.01515.07
7.2.190.0040.01115.04
7.2.180.0070.01014.93
7.2.170.0030.01214.91
7.2.130.0210.00716.11
7.2.120.0180.00716.48
7.2.110.0070.01016.25
7.2.100.0060.01216.56
7.2.90.0070.00716.72
7.2.80.0080.00416.76
7.2.70.0060.00916.57
7.2.60.0070.00816.47
7.2.50.0030.01416.21
7.2.40.0030.00916.35
7.2.30.0100.01016.52
7.2.20.0120.00616.45
7.2.10.0100.00316.86
7.2.00.0030.01018.03
7.1.330.0060.00615.54
7.1.320.0000.01115.82
7.1.310.0000.01415.64
7.1.300.0030.01315.89
7.1.290.0070.00715.82
7.1.280.0030.01015.82
7.1.270.0060.00615.75
7.1.260.0030.01015.81
7.1.250.0030.01015.50
7.1.200.0040.00415.59
7.1.100.0000.01318.43
7.1.70.0040.00416.79
7.1.60.0090.01619.22
7.1.50.0130.02034.45
7.1.00.0100.07022.47
7.0.200.0080.00016.69
7.0.140.0000.04722.10
7.0.60.0030.06719.94
7.0.50.0100.03317.96
7.0.40.0130.05020.10
7.0.30.0270.08020.07
7.0.20.0300.07320.06
7.0.10.0030.05020.24
7.0.00.0070.05720.20
5.6.280.0030.07720.90
5.6.210.0130.04720.67
5.6.200.0030.08018.15
5.6.190.0030.05720.55
5.6.180.0370.07720.67
5.6.170.0200.07020.50
5.6.160.0100.08720.55
5.6.150.0100.07718.15
5.6.140.0070.04318.25
5.6.130.0070.07018.28
5.6.120.0100.05021.05
5.6.110.0000.09320.97
5.6.100.0030.08320.98
5.6.90.0070.04720.98
5.6.80.0100.07720.38
5.5.350.0270.07320.49
5.5.340.0100.08017.99
5.5.330.0100.03720.21
5.5.320.0400.07020.32
5.5.310.0370.06320.34
5.5.300.0000.09017.98
5.5.290.0070.04018.08
5.5.280.0070.08720.88
5.5.270.0000.04320.79
5.5.260.0070.08320.76
5.5.250.0030.09020.80
5.5.240.0030.07020.19
5.4.450.0000.07719.57
5.4.440.0030.05319.30
5.4.430.0070.07719.38
5.4.420.0070.03319.41
5.4.410.0000.03719.33
5.4.400.0000.03719.16
5.4.390.0030.04019.00
5.4.380.0030.04019.14
5.4.370.0030.03719.06
5.4.360.0000.04319.22
5.4.350.0070.03019.00
5.4.340.0100.03318.87
5.4.320.0030.03719.31
5.4.310.0100.03318.87
5.4.300.0000.03719.31
5.4.290.0030.03719.06
5.4.280.0000.03719.14
5.4.270.0000.04019.21
5.4.260.0000.03719.06
5.4.250.0000.03719.16
5.4.240.0030.04019.21
5.4.230.0070.03019.15
5.4.220.0000.03719.31
5.4.210.0000.03718.88
5.4.200.0000.04318.97
5.4.190.0030.05719.23
5.4.180.0000.05319.21
5.4.170.0000.08019.21
5.4.160.0000.07718.97
5.4.150.0000.04319.29
5.4.140.0000.03716.38
5.4.130.0000.05016.28
5.4.120.0070.06016.51
5.4.110.0030.07716.40
5.4.100.0070.06316.51
5.4.90.0130.06716.56
5.4.80.0100.06716.44
5.4.70.0000.07716.52
5.4.60.0030.07016.43
5.4.50.0030.05716.43
5.4.40.0070.07316.52
5.4.30.0070.04716.32
5.4.20.0030.05716.52
5.4.10.0000.04716.43
5.4.00.0070.06315.77
5.3.290.0030.03314.68
5.3.280.0000.03714.75
5.3.270.0030.08014.75
5.3.260.0100.07714.58
5.3.250.0030.03714.52
5.3.240.0070.07014.59
5.3.230.0100.06714.50
5.3.220.0070.06014.79
5.3.210.0100.05014.79
5.3.200.0030.06014.50
5.3.190.0030.07714.48
5.3.180.0030.08014.55
5.3.170.0000.08314.54
5.3.160.0070.07714.64
5.3.150.0000.07714.46
5.3.140.0130.06714.63
5.3.130.0070.07714.68
5.3.120.0000.07714.55
5.3.110.0070.03314.70
5.3.100.0030.07714.26
5.3.90.0000.05014.14
5.3.80.0030.07713.92
5.3.70.0000.07013.94
5.3.60.0070.07314.11
5.3.50.0070.05313.86
5.3.40.0000.07713.85
5.3.30.0000.05313.82
5.3.20.0100.05013.61
5.3.10.0070.06713.57
5.3.00.0000.07713.73
5.2.170.0000.06012.99
5.2.160.0070.05712.99
5.2.150.0030.06012.99
5.2.140.0030.06012.99
5.2.130.0000.06312.99
5.2.120.0030.05712.99
5.2.110.0070.06012.99
5.2.100.0000.06312.99
5.2.90.0030.05712.99
5.2.80.0030.06012.99
5.2.70.0070.06012.99
5.2.60.0030.05712.99
5.2.50.0000.05712.99
5.2.40.0030.05712.99
5.2.30.0070.04712.99
5.2.20.0030.06012.99
5.2.10.0030.04012.99
5.2.00.0000.04312.99
5.1.60.0000.05712.99
5.1.50.0030.05312.99
5.1.40.0070.03712.99
5.1.30.0030.06012.99
5.1.20.0030.05712.99
5.1.10.0000.05012.99
5.1.00.0000.04712.99
5.0.50.0000.04312.99
5.0.40.0030.03712.99
5.0.30.0030.05312.99
5.0.20.0070.02712.99
5.0.10.0000.02712.99
5.0.00.0030.06012.99
4.4.90.0030.03712.99
4.4.80.0000.02312.99
4.4.70.0030.03012.99
4.4.60.0030.02712.99
4.4.50.0030.03312.99
4.4.40.0030.03012.99
4.4.30.0000.03712.99
4.4.20.0030.03712.99
4.4.10.0000.03012.99
4.4.00.0000.05012.99
4.3.110.0000.02312.99
4.3.100.0000.03312.99
4.3.90.0000.03712.99
4.3.80.0030.05312.99
4.3.70.0070.03012.99
4.3.60.0000.03312.99
4.3.50.0000.02712.99
4.3.40.0000.04312.99
4.3.30.0000.03312.99
4.3.20.0000.03712.99
4.3.10.0000.03712.99
4.3.00.0030.02012.99

preferences:
52.26 ms | 401 KiB | 5 Q