3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { const CMS_IDENTIFIER = '#ELEMENT:'; } $identifier = '#ELEMENT:register'; var_dump(strpos($identifier, Test::CMS_IDENTIFIER)); if (0 === strpos($identifier, Test::CMS_IDENTIFIER)) { var_dump(substr($identifier, strlen(Test::CMS_IDENTIFIER))); }

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)
8.3.60.0070.00716.63
8.3.50.0090.00622.69
8.3.40.0090.00918.97
8.3.30.0100.00319.23
8.3.20.0070.00020.29
8.3.10.0030.00621.93
8.3.00.0090.00017.66
8.2.180.0140.00718.66
8.2.170.0140.00722.96
8.2.160.0100.00720.38
8.2.150.0050.00324.18
8.2.140.0050.00224.66
8.2.130.0070.01126.16
8.2.120.0040.00420.89
8.2.110.0030.00922.25
8.2.100.0080.00417.91
8.2.90.0080.00017.91
8.2.80.0090.00017.97
8.2.70.0030.00617.63
8.2.60.0060.00317.80
8.2.50.0040.00718.07
8.2.40.0040.00418.16
8.2.30.0040.00418.17
8.2.20.0000.00717.66
8.2.10.0040.00418.14
8.2.00.0040.00417.78
8.1.280.0120.00425.92
8.1.270.0090.00023.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.47
8.1.230.0040.00820.97
8.1.220.0040.00417.77
8.1.210.0060.00318.89
8.1.200.0000.00917.38
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0060.00318.69
8.1.160.0040.00421.95
8.1.150.0000.00718.75
8.1.140.0040.00417.37
8.1.130.0000.00717.70
8.1.120.0000.00717.39
8.1.110.0000.00817.50
8.1.100.0030.00317.44
8.1.90.0040.00317.44
8.1.80.0000.00717.49
8.1.70.0030.00317.41
8.1.60.0030.00617.62
8.1.50.0040.00417.53
8.1.40.0040.00417.58
8.1.30.0030.00617.65
8.1.20.0050.00317.55
8.1.10.0080.00017.51
8.1.00.0000.00717.52
8.0.300.0000.00719.97
8.0.290.0070.00016.75
8.0.280.0030.00318.40
8.0.270.0000.00717.19
8.0.260.0000.00717.25
8.0.250.0070.00017.07
8.0.240.0000.00816.92
8.0.230.0060.00316.96
8.0.220.0030.00316.85
8.0.210.0030.00616.97
8.0.200.0030.00316.98
8.0.190.0040.00416.97
8.0.180.0040.00417.05
8.0.170.0040.00416.98
8.0.160.0070.00016.98
8.0.150.0040.00417.00
8.0.140.0000.00716.82
8.0.130.0030.00313.45
8.0.120.0000.00816.80
8.0.110.0000.00716.89
8.0.100.0030.00516.82
8.0.90.0000.00717.02
8.0.80.0070.01416.96
8.0.70.0000.00716.81
8.0.60.0000.00716.85
8.0.50.0000.00716.88
8.0.30.0060.01317.27
8.0.20.0140.00517.40
8.0.10.0040.00417.10
8.0.00.0140.00716.78
7.4.330.0050.00015.03
7.4.320.0030.00316.52
7.4.300.0030.00316.55
7.4.290.0070.00016.50
7.4.280.0040.00416.53
7.4.270.0000.00716.46
7.4.260.0000.00716.61
7.4.250.0050.00316.34
7.4.240.0020.00516.52
7.4.230.0030.00316.60
7.4.220.0040.01416.55
7.4.210.0150.00616.45
7.4.200.0030.00316.57
7.4.160.0040.01216.58
7.4.150.0100.00717.40
7.4.140.0060.01217.86
7.4.130.0040.01516.67
7.4.120.0150.00516.47
7.4.110.0100.00716.47
7.4.100.0120.00416.46
7.4.90.0120.00916.49
7.4.80.0030.01619.39
7.4.70.0080.00816.50
7.4.60.0130.00516.63
7.4.50.0030.00616.49
7.4.40.0100.01316.42
7.4.30.0060.00916.44
7.4.00.0070.00715.22
7.3.330.0050.00213.30
7.3.320.0060.00013.14
7.3.310.0000.00716.34
7.3.300.0070.00016.18
7.3.290.0000.01316.23
7.3.280.0100.00616.28
7.3.270.0070.01017.40
7.3.260.0090.00916.47
7.3.250.0090.01016.52
7.3.240.0140.00316.27
7.3.230.0090.01516.39
7.3.210.0030.01316.21
7.3.200.0070.01019.39
7.3.190.0110.00816.38
7.3.180.0100.00716.41
7.3.170.0110.00616.27
7.3.160.0160.00016.42
7.3.120.0060.00614.67
7.2.330.0100.01316.41
7.2.320.0120.01216.50
7.2.310.0030.01416.65
7.2.300.0100.00716.68
7.2.290.0080.00816.66
7.2.60.0030.01316.81
7.2.00.0000.01319.27
7.1.200.0040.00415.49
7.1.100.0110.00718.00
7.1.70.0000.00717.06
7.1.60.0070.01019.40
7.1.50.0070.01717.00
7.1.00.0000.08022.36
7.0.200.0030.00316.75
7.0.140.0070.07022.00
7.0.60.0100.08320.05
7.0.50.0100.05717.89
7.0.40.0130.04020.20
7.0.30.0370.07020.24
7.0.20.0400.07320.16
7.0.10.0100.04720.21
7.0.00.0070.04020.22
5.6.210.0170.07020.51
5.6.200.0130.07718.16
5.6.190.0170.06020.47
5.6.180.0330.03720.52
5.6.170.0230.07020.54
5.6.160.0100.08320.47
5.6.150.0100.08018.14
5.6.140.0070.08318.15
5.6.130.0070.03718.27
5.6.120.0100.08720.98
5.6.110.0030.08721.00
5.6.100.0170.06320.99
5.6.90.0030.04021.03
5.6.80.0100.06020.50
5.5.350.0130.07720.41
5.5.340.0070.08017.98
5.5.330.0030.07720.47
5.5.320.3130.04720.28
5.5.310.0230.07320.30
5.5.300.0070.08318.04
5.5.290.0130.06717.95
5.5.280.0030.07020.85
5.5.270.0130.05320.78
5.5.260.0130.07720.87
5.5.250.0030.04720.58
5.5.240.0030.03720.15
5.4.450.0270.06019.48
5.4.440.0830.05019.47
5.4.430.0130.05019.54
5.4.420.0070.05719.52
5.4.410.0100.05719.00
5.4.400.0200.04318.51
5.4.390.0170.04718.69
5.4.380.0070.06018.72
5.4.370.0100.03718.51
5.4.360.0170.03718.52
5.4.350.0090.03712.02
5.4.340.0070.03712.01
5.4.320.0090.04012.50
5.4.310.0040.04612.49
5.4.300.0040.03912.50
5.4.290.0060.03812.49
5.4.280.0060.03512.39
5.4.270.0060.03512.39
5.4.260.0070.04112.39
5.4.250.0030.03912.39
5.4.240.0100.04412.39
5.4.230.0040.03812.38
5.4.220.0060.03512.38
5.4.210.0060.04012.38
5.4.200.0060.03612.38
5.4.190.0050.03612.38
5.4.180.0050.03712.38
5.4.170.0110.03112.39
5.4.160.0030.03812.38
5.4.150.0080.03312.38
5.4.140.0030.04112.07
5.4.130.0060.03712.06
5.4.120.0050.03712.01
5.4.110.0060.03812.00
5.4.100.0060.03512.00
5.4.90.0050.03712.01
5.4.80.0070.04412.01
5.4.70.0060.03412.00
5.4.60.0070.03512.00
5.4.50.0040.03812.00
5.4.40.0080.03812.00
5.4.30.0050.04011.99
5.4.20.0050.04211.99
5.4.10.0080.03311.99
5.4.00.0070.03411.48
5.3.290.0080.03912.80
5.3.280.0050.03812.71
5.3.270.0050.04112.73
5.3.260.0050.04012.72
5.3.250.0050.03912.72
5.3.240.0110.03312.72
5.3.230.0110.03412.71
5.3.220.0040.04012.68
5.3.210.0060.03812.68
5.3.200.0030.03812.68
5.3.190.0090.03312.68
5.3.180.0080.03412.67
5.3.170.0110.04212.67
5.3.160.0040.04412.67
5.3.150.0100.03212.68
5.3.140.0020.03912.66
5.3.130.0070.03812.66
5.3.120.0040.03912.66
5.3.110.0070.03712.66
5.3.100.0070.03512.12
5.3.90.0080.03912.09
5.3.80.0060.04012.09
5.3.70.0070.04312.09
5.3.60.0070.03212.07
5.3.50.0070.03312.02
5.3.40.0040.03612.02
5.3.30.0080.03211.98
5.3.20.0080.03211.76
5.3.10.0040.03611.73
5.3.00.0040.04111.71
5.2.170.0040.0309.21
5.2.160.0090.0289.21
5.2.150.0070.0279.22
5.2.140.0050.0299.21
5.2.130.0040.0329.18
5.2.120.0030.0369.17
5.2.110.0080.0259.18
5.2.100.0070.0319.18
5.2.90.0060.0289.18
5.2.80.0050.0309.17
5.2.70.0030.0329.17
5.2.60.0080.0349.13
5.2.50.0040.0329.09
5.2.40.0060.0299.07
5.2.30.0040.0309.04
5.2.20.0050.0289.03
5.2.10.0040.0288.94
5.2.00.0080.0268.80
5.1.60.0040.0248.09
5.1.50.0040.0258.08
5.1.40.0020.0318.06
5.1.30.0060.0258.41
5.1.20.0050.0378.43
5.1.10.0040.0268.16
5.1.00.0070.0228.16
5.0.50.0070.0286.64
5.0.40.0060.0166.50
5.0.30.0020.0336.31
5.0.20.0040.0186.28
5.0.10.0040.0266.25
5.0.00.0050.0376.25
4.4.90.0040.0184.78
4.4.80.0030.0154.76
4.4.70.0040.0194.76
4.4.60.0020.0194.75
4.4.50.0020.0184.77
4.4.40.0040.0354.71
4.4.30.0030.0164.76
4.4.20.0010.0174.84
4.4.10.0030.0194.84
4.4.00.0040.0294.76
4.3.110.0040.0194.67
4.3.100.0050.0154.66
4.3.90.0020.0174.63
4.3.80.0020.0274.58
4.3.70.0030.0204.63
4.3.60.0050.0184.63
4.3.50.0020.0194.63
4.3.40.0010.0254.54
4.3.30.0030.0143.30
4.3.20.0020.0153.28
4.3.10.0010.0163.24
4.3.00.0030.0206.89

preferences:
44.02 ms | 401 KiB | 5 Q