3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '$'; $$a = null; $wat = 'foo'; echo $wat;

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)
8.3.40.0070.00718.50
8.3.30.0100.00718.86
8.3.20.0040.00420.27
8.3.10.0080.00021.90
8.3.00.0000.00718.92
8.2.170.0090.00622.96
8.2.160.0070.00722.09
8.2.150.0050.00324.18
8.2.140.0000.00924.66
8.2.130.0000.00826.16
8.2.120.0070.00019.66
8.2.110.0070.00322.24
8.2.100.0060.00617.78
8.2.90.0070.00019.08
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0000.00918.04
8.2.50.0080.00018.07
8.2.40.0090.00018.33
8.2.30.0070.00019.54
8.2.20.0050.00317.70
8.2.10.0070.00018.04
8.2.00.0030.00517.61
8.1.270.0000.00918.96
8.1.260.0040.00426.35
8.1.250.0100.00028.09
8.1.240.0060.00323.96
8.1.230.0080.00319.15
8.1.220.0030.00517.74
8.1.210.0060.00318.77
8.1.200.0000.01217.22
8.1.190.0080.00317.22
8.1.180.0040.00418.10
8.1.170.0030.00618.45
8.1.160.0040.00421.91
8.1.150.0050.00318.92
8.1.140.0000.00819.23
8.1.130.0040.00417.81
8.1.120.0030.00317.49
8.1.110.0040.00417.43
8.1.100.0000.00717.49
8.1.90.0050.00217.30
8.1.80.0070.00017.46
8.1.70.0030.00317.34
8.1.60.0040.00417.59
8.1.50.0040.00817.51
8.1.40.0000.00717.42
8.1.30.0080.00017.69
8.1.20.0050.00317.54
8.1.10.0020.00517.46
8.1.00.0030.00617.32
8.0.300.0030.00318.77
8.0.290.0070.00016.75
8.0.280.0040.00418.50
8.0.270.0040.00417.24
8.0.260.0000.00718.31
8.0.250.0030.00316.95
8.0.240.0030.00316.93
8.0.230.0070.00016.98
8.0.220.0070.00016.74
8.0.210.0060.00016.87
8.0.200.0070.00016.87
8.0.190.0030.00316.95
8.0.180.0070.00016.91
8.0.170.0080.00016.80
8.0.160.0000.00716.81
8.0.150.0000.00816.89
8.0.140.0030.00716.73
8.0.130.0000.00513.35
8.0.120.0000.00716.81
8.0.110.0050.00316.84
8.0.100.0000.00816.92
8.0.90.0020.00516.88
8.0.80.0040.01116.94
8.0.70.0040.00416.71
8.0.60.0000.00716.71
8.0.50.0070.00016.77
8.0.30.0120.01216.98
8.0.20.0100.01017.40
8.0.10.0040.00416.87
8.0.00.0080.01216.56
7.4.330.0000.00615.03
7.4.320.0060.00316.49
7.4.300.0050.00216.48
7.4.290.0000.00616.42
7.4.280.0040.00716.63
7.4.270.0020.00516.59
7.4.260.0040.00716.40
7.4.250.0050.00316.45
7.4.240.0030.00316.56
7.4.230.0030.00316.43
7.4.220.0090.00916.59
7.4.210.0030.01116.58
7.4.200.0030.00316.50
7.4.160.0070.01016.41
7.4.150.0070.01617.40
7.4.140.0120.00517.86
7.4.130.0100.00716.42
7.4.120.0110.00816.45
7.4.110.0130.00716.53
7.4.100.0150.00616.43
7.4.90.0070.01116.45
7.4.80.0100.00719.39
7.4.70.0120.00616.57
7.4.60.0100.01016.39
7.4.50.0040.00416.57
7.4.40.0100.00716.51
7.4.30.0120.01216.49
7.4.00.0090.00815.00
7.3.330.0050.00013.00
7.3.320.0030.00313.02
7.3.310.0000.00716.11
7.3.300.0060.00016.25
7.3.290.0030.00316.24
7.3.280.0080.00716.22
7.3.270.0030.01417.40
7.3.260.0150.00316.30
7.3.250.0070.01016.33
7.3.240.0070.01016.24
7.3.230.0100.01316.45
7.3.210.0130.00316.30
7.3.200.0190.00319.39
7.3.190.0030.01716.30
7.3.180.0060.01016.59
7.3.170.0170.00016.27
7.3.160.0120.00316.27
7.3.120.0110.00814.95
7.3.110.0130.00014.81
7.3.100.0070.00714.93
7.3.90.0000.01214.77
7.3.80.0130.00314.57
7.3.70.0030.01014.93
7.3.60.0000.01714.61
7.3.50.0060.01014.67
7.3.40.0040.00814.64
7.3.30.0040.00414.73
7.3.20.0110.00416.63
7.3.10.0030.01316.22
7.3.00.0040.01116.46
7.2.330.0100.00716.62
7.2.320.0070.01016.36
7.2.310.0040.01316.59
7.2.300.0060.00916.28
7.2.290.0140.00416.43
7.2.250.0060.01315.09
7.2.240.0000.01514.89
7.2.230.0060.01214.84
7.2.220.0060.00914.98
7.2.210.0100.00615.11
7.2.200.0110.00314.80
7.2.190.0060.00315.05
7.2.180.0060.00915.00
7.2.170.0110.00314.89
7.2.00.0060.00619.41
7.1.330.0000.00915.71
7.1.320.0070.00315.85
7.1.310.0040.00715.78
7.1.300.0030.01415.55
7.1.290.0030.01415.89
7.1.280.0000.01215.63
7.1.270.0070.00715.73
7.1.260.0040.00415.91
7.1.100.0040.00717.98
7.1.70.0000.00917.01
7.1.60.0220.00319.46
7.1.50.0070.01516.47
7.1.00.0070.07322.54
7.0.200.0030.00616.35
7.0.140.0030.07722.08
7.0.110.0130.03720.06
7.0.100.0200.06720.09
7.0.90.0200.07019.93
7.0.80.0070.08720.02
7.0.70.0130.07320.00
7.0.60.0000.05019.91
7.0.50.0070.06719.94
7.0.40.0030.05319.60
7.0.30.0030.08019.75
7.0.20.0070.07319.74
7.0.10.0030.04019.73
7.0.00.0030.04019.74
5.6.280.0000.07720.90
5.6.260.0030.05020.73
5.6.250.0130.06720.74
5.6.240.0130.06720.55
5.6.230.0030.08720.63
5.6.220.0100.08020.70
5.6.210.0070.07720.80
5.6.200.0030.07020.65
5.6.190.0100.08720.70
5.6.180.0030.08320.47
5.6.170.0100.06320.55
5.6.160.0030.08020.55
5.6.150.0100.06720.85
5.6.140.0000.06320.61
5.6.130.0070.07720.64
5.6.120.0100.08320.69
5.6.110.0170.04020.57
5.6.100.0130.04020.53
5.6.90.0070.08020.54
5.6.80.0000.04320.02
5.6.70.0030.07019.83
5.6.60.0000.08320.01
5.6.50.0100.07320.00
5.6.40.0100.06320.03
5.6.30.0100.07719.98
5.6.20.0000.05020.20
5.6.10.0100.03319.99
5.6.00.0030.04020.00
5.5.380.0030.08717.54
5.5.370.0070.06017.55
5.5.360.0030.08717.49
5.5.350.0000.05017.43
5.5.340.0000.08718.02
5.5.330.0030.08318.17
5.5.320.0000.04318.10
5.5.310.0030.07018.11
5.5.300.0100.06317.86
5.5.290.0030.08317.88
5.5.280.0030.08317.84
5.5.270.0100.07318.00
5.5.260.0070.04717.84
5.5.250.0070.07717.79
5.5.240.0070.07717.23
5.5.230.0030.03717.47
5.5.220.0130.07017.63
5.5.210.0100.03017.23
5.5.200.0100.06017.24
5.5.190.0030.05717.21
5.5.180.0070.07317.44
5.5.160.0170.02317.48
5.5.150.0070.03317.46
5.5.140.0000.04317.50
5.5.130.0070.03717.21
5.5.120.0100.03317.13
5.5.110.0030.03717.45
5.5.100.0030.03317.50
5.5.90.0030.03717.09
5.5.80.0000.04017.01
5.5.70.0100.06317.34
5.5.60.0030.08017.01
5.5.50.0070.07017.40
5.5.40.0170.06317.01
5.5.30.0100.02717.24
5.5.20.0100.03317.35
5.5.10.0000.05717.36
5.5.00.0030.03717.39
5.4.450.0070.07319.28
5.4.440.0070.07019.32
5.4.430.0130.07319.49
5.4.420.0100.07019.42
5.4.410.0130.06719.29
5.4.400.0030.07719.07
5.4.390.0000.08319.26
5.4.380.0070.07719.11
5.4.370.0100.03019.00
5.4.360.0130.06319.10
5.4.350.0100.05719.00
5.4.340.0100.07318.99
5.4.320.0070.03319.07
5.4.310.0000.04019.16
5.4.300.0070.03319.24
5.4.290.0070.02718.94
5.4.280.0000.04019.26
5.4.270.0030.04018.92
5.4.260.0000.03319.17
5.4.250.0070.03318.94
5.4.240.0030.04018.94
5.4.230.0100.03019.07
5.4.220.0000.07319.10
5.4.210.0000.04318.97
5.4.200.0070.03718.95
5.4.190.0030.04018.91
5.4.180.0100.04319.14
5.4.170.0030.05018.93
5.4.160.0000.04019.00
5.4.150.0070.04018.90
5.4.140.0070.03016.48
5.4.130.0030.03716.20
5.4.120.0070.03316.11
5.4.110.0000.04016.38
5.4.100.0100.03016.23
5.4.90.0000.03716.38
5.4.80.0100.04716.48
5.4.70.0100.02716.45
5.4.60.0030.05016.45
5.4.50.0000.03716.44
5.4.40.0030.03316.52
5.4.30.0000.03716.34
5.4.20.0100.02716.39
5.4.10.0030.03716.32
5.4.00.0030.03315.79
5.3.290.0000.04014.76
5.3.280.0000.03314.69
5.3.270.0130.06314.54
5.3.260.0000.04014.59
5.3.250.0070.03314.54
5.3.240.0100.03014.66
5.3.230.0030.04014.66
5.3.220.0030.04714.45
5.3.210.0000.04714.58
5.3.200.0070.03714.58
5.3.190.0000.04014.43
5.3.180.0100.03014.35
5.3.170.0000.04014.63
5.3.160.0030.03714.50
5.3.150.0000.04014.45
5.3.140.0030.03714.34
5.3.130.0030.03714.64
5.3.120.0000.04314.46
5.3.110.0030.04014.41
5.3.100.0070.03314.14
5.3.90.0000.04713.90
5.3.80.0030.03713.94
5.3.70.0030.03713.84
5.3.60.0030.04013.78
5.3.50.0030.03714.00
5.3.40.0070.04313.78
5.3.30.0000.04013.97
5.3.20.0000.03713.78
5.3.10.0100.02713.75
5.3.00.0100.02013.56
5.2.170.0030.02712.46
5.2.160.0000.03012.46
5.2.150.0070.02712.46
5.2.140.0030.02712.46
5.2.130.0070.02312.46
5.2.120.0000.03012.46
5.2.110.0000.02712.46
5.2.100.0000.03312.46
5.2.90.0000.02312.46
5.2.80.0000.03712.46
5.2.70.0070.04312.46
5.2.60.0070.02312.46
5.2.50.0030.04712.46
5.2.40.0030.05312.46
5.2.30.0000.04712.46
5.2.20.0070.02312.46
5.2.10.0070.05312.46
5.2.00.0070.05712.46
5.1.60.0030.05012.46
5.1.50.0100.04712.46
5.1.40.0030.05012.46
5.1.30.0070.04712.46
5.1.20.0030.02712.46
5.1.10.0070.05712.46
5.1.00.0000.05712.46
5.0.50.0070.04312.46
5.0.40.0030.02012.46
5.0.30.0000.06712.46
5.0.20.0070.02012.46
5.0.10.0030.04312.46
5.0.00.0000.06012.46
4.4.90.0030.01312.46
4.4.80.0000.03712.46
4.4.70.0000.02712.46
4.4.60.0030.03312.46
4.4.50.0070.03012.46
4.4.40.0070.05012.46
4.4.30.0000.03712.46
4.4.20.0070.02312.46
4.4.10.0000.02712.46
4.4.00.0070.03312.46
4.3.110.0000.03712.46
4.3.100.0070.03012.46
4.3.90.0000.03012.46
4.3.80.0000.03712.46
4.3.70.0030.03312.46
4.3.60.0030.01712.46
4.3.50.0000.03012.46
4.3.40.0030.02712.46
4.3.30.0000.03712.46
4.3.20.0030.03712.46
4.3.10.0000.03012.46
4.3.00.0000.02712.46

preferences:
44.42 ms | 400 KiB | 5 Q