3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; echo strlen($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)
8.3.40.0040.01418.75
8.3.30.0100.00318.79
8.3.20.0000.00820.16
8.3.10.0040.00420.32
8.3.00.0060.00319.56
8.2.170.0140.00322.96
8.2.160.0030.01019.14
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00722.22
8.2.110.0100.00022.01
8.2.100.0000.01417.72
8.2.90.0030.00619.09
8.2.80.0040.00417.97
8.2.70.0080.00017.49
8.2.60.0080.00017.79
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0040.00419.27
8.2.20.0060.00317.78
8.2.10.0000.00718.04
8.2.00.0040.00417.65
8.1.270.0090.00023.93
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00323.84
8.1.230.0040.00819.21
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0080.00017.10
8.1.190.0050.00217.23
8.1.180.0090.00018.10
8.1.170.0000.00818.49
8.1.160.0040.00422.00
8.1.150.0040.00418.82
8.1.140.0000.00817.44
8.1.130.0000.00617.86
8.1.120.0070.00017.42
8.1.110.0000.00717.38
8.1.100.0050.00217.37
8.1.90.0000.00717.28
8.1.80.0000.00717.43
8.1.70.0040.00417.30
8.1.60.0030.00517.55
8.1.50.0000.00917.31
8.1.40.0090.00017.34
8.1.30.0050.00317.42
8.1.20.0040.00417.56
8.1.10.0000.00717.51
8.1.00.0000.00717.29
8.0.300.0020.00518.77
8.0.290.0040.00416.63
8.0.280.0030.00318.45
8.0.270.0070.00017.16
8.0.260.0040.00418.41
8.0.250.0000.00616.79
8.0.240.0060.00016.87
8.0.230.0030.00316.87
8.0.220.0030.00316.78
8.0.210.0000.00716.81
8.0.200.0000.00716.85
8.0.190.0030.00616.82
8.0.180.0070.00016.73
8.0.170.0000.00816.85
8.0.160.0000.00816.77
8.0.150.0070.00016.81
8.0.140.0000.00716.70
8.0.130.0000.00613.24
8.0.120.0080.00016.79
8.0.110.0050.00216.76
8.0.100.0070.00016.81
8.0.90.0040.00416.78
8.0.80.0060.00916.84
8.0.70.0000.00816.79
8.0.60.0040.00416.84
8.0.50.0020.00516.93
8.0.30.0100.01116.86
8.0.20.0100.00817.40
8.0.10.0070.00016.96
8.0.00.0080.00816.74
7.4.330.0000.00615.06
7.4.320.0030.00316.57
7.4.300.0030.00316.44
7.4.290.0000.00716.42
7.4.280.0030.00316.54
7.4.270.0030.00316.50
7.4.260.0030.00316.37
7.4.250.0040.00416.38
7.4.240.0030.00316.42
7.4.230.0040.00416.61
7.4.220.0110.00716.55
7.4.210.0030.01016.55
7.4.200.0070.00016.40
7.4.160.0120.00316.47
7.4.150.0070.01117.40
7.4.140.0090.00817.86
7.4.130.0110.00716.37
7.4.120.0070.01016.44
7.4.110.0070.01116.54
7.4.100.0110.00616.48
7.4.90.0100.00716.30
7.4.80.0060.01219.39
7.4.70.0120.01016.38
7.4.60.0190.00116.26
7.4.50.0140.00816.41
7.4.40.0310.00516.31
7.4.30.0270.00916.15
7.4.20.0290.00616.32
7.4.10.0320.00516.63
7.4.00.0050.01415.32
7.3.330.0050.00013.03
7.3.320.0050.00013.03
7.3.310.0050.00216.20
7.3.300.0050.00216.23
7.3.290.0110.00316.25
7.3.280.0080.00716.24
7.3.270.0060.01017.40
7.3.260.0100.00716.42
7.3.250.0080.00916.15
7.3.240.0120.00416.16
7.3.230.0110.00516.61
7.3.210.0070.01316.39
7.3.200.0060.01019.39
7.3.190.0150.01315.91
7.3.180.0130.01116.33
7.3.170.0380.00616.48
7.3.160.0300.00416.20
7.3.150.0350.00316.34
7.3.140.0290.01116.25
7.3.130.0280.01116.08
7.3.120.0210.01115.59
7.3.110.0160.01015.42
7.3.100.0180.01215.13
7.3.90.0140.01115.58
7.3.80.0130.01015.51
7.3.70.0170.00815.48
7.3.60.0160.00915.53
7.3.50.0090.01415.56
7.3.40.0110.01015.56
7.3.30.0150.00915.57
7.3.20.0190.00516.47
7.3.10.0170.00816.34
7.3.00.0160.00816.40
7.2.330.0080.00816.47
7.2.320.0070.01016.66
7.2.310.0220.00916.10
7.2.300.0240.01416.63
7.2.290.0200.01916.23
7.2.280.0190.01316.38
7.2.270.0180.01816.59
7.2.260.0310.01316.25
7.2.250.0150.01115.55
7.2.240.0150.00915.53
7.2.230.0200.00615.56
7.2.220.0090.01115.68
7.2.210.0140.01115.53
7.2.200.0140.01315.54
7.2.190.0140.00915.41
7.2.180.0200.00615.74
7.2.170.0140.00815.60
7.2.160.0260.00716.41
7.2.150.0360.00616.48
7.2.140.0210.00916.40
7.2.130.0220.00716.29
7.2.120.0160.01216.34
7.2.110.0230.00716.25
7.2.100.0350.00616.39
7.2.90.0190.00516.34
7.2.80.0160.01616.29
7.2.70.0160.01716.36
7.2.60.0180.00716.61
7.2.50.0190.01516.34
7.2.40.0210.01216.55
7.2.30.0200.01416.55
7.2.20.0230.00716.39
7.2.10.0200.01416.60
7.2.00.0150.00817.84
7.1.330.0140.00915.49
7.1.320.0100.00815.35
7.1.310.0130.00915.61
7.1.300.0110.00815.42
7.1.290.0060.00915.46
7.1.280.0080.01215.45
7.1.270.0060.01315.48
7.1.260.0100.00615.39
7.1.250.0150.01215.27
7.1.240.0200.00815.27
7.1.230.0180.01115.05
7.1.220.0130.01315.44
7.1.210.0230.00015.16
7.1.200.0190.00315.30
7.1.190.0280.00515.21
7.1.180.0260.00715.23
7.1.170.0270.00715.44
7.1.160.0220.00715.50
7.1.150.0230.01015.21
7.1.140.0360.01315.31
7.1.130.0230.00615.25
7.1.120.0240.00915.30
7.1.110.0350.00315.44
7.1.100.0120.01116.59
7.1.90.0180.01315.41
7.1.80.0240.00815.40
7.1.70.0140.00716.16
7.1.60.0100.01216.18
7.1.50.0120.00916.18
7.1.40.0180.01315.99
7.1.30.0130.01015.95
7.1.20.0080.01216.04
7.1.10.0090.00815.84
7.1.00.0130.00815.76
7.0.330.0200.00314.99
7.0.320.0100.01615.03
7.0.310.0200.00715.27
7.0.300.0220.01415.31
7.0.290.0220.00415.12
7.0.280.0120.01815.17
7.0.270.0130.01415.21
7.0.260.0270.00315.13
7.0.250.0280.00615.38
7.0.240.0190.00815.21
7.0.230.0290.00715.20
7.0.220.0260.00315.13
7.0.210.0230.00615.02
7.0.200.0090.00516.01
7.0.190.0100.00815.93
7.0.180.0100.00915.73
7.0.170.0100.00615.83
7.0.160.0050.01115.58
7.0.150.0090.00815.65
7.0.140.0140.00615.69
7.0.130.0080.00915.74
7.0.120.0060.01015.76
7.0.110.0100.00515.57
7.0.100.0150.00215.79
7.0.90.0160.00115.73
7.0.80.0150.00815.74
7.0.70.0150.00815.55
7.0.60.0070.01015.56
7.0.50.0070.01015.80
7.0.40.0100.00715.01
7.0.30.0120.00514.96
7.0.20.0060.00914.98
7.0.10.0150.00814.95
7.0.00.0100.00615.01
5.6.400.0140.01715.63
5.6.390.0120.01215.77
5.6.380.0120.01215.55
5.6.370.0190.01115.99
5.6.360.0190.01415.66
5.6.350.0210.00715.86
5.6.340.0160.01316.04
5.6.330.0200.01016.02
5.6.320.0210.01215.97
5.6.310.0280.00715.96
5.6.300.0110.03118.33
5.6.290.0060.03518.31
5.6.280.0120.02618.37
5.6.270.0040.03418.39
5.6.260.0110.03218.36
5.6.250.0080.02918.29
5.6.240.0170.03118.32
5.6.230.0160.03818.24
5.6.220.0130.03818.26
5.6.210.0070.05618.25
5.6.200.0120.02718.26
5.6.190.0080.03018.35
5.6.180.0120.02518.30
5.6.170.0170.02718.21
5.6.160.0100.02518.24
5.6.150.0130.02618.24
5.6.140.0170.04218.27
5.6.130.0150.04118.13
5.6.120.0050.03518.27
5.6.110.0070.02918.25
5.6.100.0170.02918.38
5.6.90.0120.02518.20
5.6.80.0070.02717.90
5.6.70.0110.02418.02
5.6.60.0090.02317.93
5.6.50.0120.02718.05
5.6.40.0080.02518.00
5.6.30.0050.02817.92
5.6.20.0120.04117.98
5.6.10.0160.02718.12
5.6.00.0100.02617.88
5.5.380.0090.02716.57
5.5.370.0160.02216.58
5.5.360.0100.04816.58
5.5.350.0110.02716.52
5.5.340.0120.02816.95
5.5.330.0090.02816.93
5.5.320.0100.04916.88
5.5.310.0090.03016.74
5.5.300.0140.02716.87
5.5.290.0150.03316.71
5.5.280.0090.03716.78
5.5.270.0130.03816.71
5.5.260.0140.02416.71
5.5.250.0130.02716.65
5.5.240.0080.02716.49
5.5.230.0110.03516.53
5.5.220.0130.04216.47
5.5.210.0090.02716.67
5.5.200.0190.01816.59
5.5.190.0120.02416.49
5.5.180.0040.04816.51
5.5.170.0120.01615.55
5.5.160.0100.02716.51
5.5.150.0120.02716.36
5.5.140.0120.02416.52
5.5.130.0190.02316.50
5.5.120.0120.02416.51
5.5.110.0120.02616.53
5.5.100.0130.02916.52
5.5.90.0090.02416.21
5.5.80.0090.03816.35
5.5.70.0100.02516.40
5.5.60.0120.02916.35
5.5.50.0140.02816.38
5.5.40.0090.02916.29
5.5.30.0110.03316.44
5.5.20.0110.02716.38
5.5.10.0100.02316.53
5.5.00.0160.02116.52
5.4.450.0110.02415.98
5.4.440.0120.02115.83
5.4.430.0130.04215.98
5.4.420.0080.04816.05
5.4.410.0080.03415.95
5.4.400.0080.02315.69
5.4.390.0080.02615.82
5.4.380.0090.03415.77
5.4.370.0100.02215.70
5.4.360.0110.02215.83
5.4.350.0050.02515.82
5.4.340.0100.03815.70
5.4.330.0170.00312.46
5.4.320.0090.03115.69
5.4.310.0110.02215.71
5.4.300.0110.02515.78
5.4.290.0080.02515.73
5.4.280.0050.02915.70
5.4.270.0110.01915.66
5.4.260.0080.02415.71
5.4.250.0070.02615.74
5.4.240.0070.02515.78
5.4.230.0130.02315.91
5.4.220.0150.02115.76
5.4.210.0100.02215.89
5.4.200.0110.02615.79
5.4.190.0130.03615.75
5.4.180.0120.02315.64
5.4.170.0100.02115.86
5.4.160.0110.01915.69
5.4.150.0120.02115.77
5.4.140.0160.01914.49
5.4.130.0040.02614.41
5.4.120.0140.01914.43
5.4.110.0090.02114.55
5.4.100.0100.02214.54
5.4.90.0070.02214.69
5.4.80.0100.02214.66
5.4.70.0080.02314.62
5.4.60.0110.02014.39
5.4.50.0120.01914.47
5.4.40.0060.02514.60
5.4.30.0080.02114.49
5.4.20.0070.02114.41
5.4.10.0090.02214.44
5.4.00.0110.02114.07

preferences:
37.55 ms | 400 KiB | 5 Q