3v4l.org

run code in 300+ PHP versions simultaneously
<?php function shouldUpdateUsername($source, $existing) { if ($source !== $existing) { $pattern = sprintf('/%s \[\d+\]/', preg_quote($source, '/')); $processedBefore = preg_match($pattern, $existing) !== 1; $sourceAvailable = false; return $sourceAvailable || $processedBefore; } return false; } var_dump(shouldUpdateUsername('Test 1', 'Test'));

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)
8.3.60.0140.00418.68
8.3.50.0100.00822.04
8.3.40.0110.00418.79
8.3.30.0170.00318.96
8.3.20.0070.00020.17
8.3.10.0040.00420.82
8.3.00.0050.00319.50
8.2.180.0130.00716.88
8.2.170.0150.00322.96
8.2.160.0130.00320.39
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0080.00021.05
8.2.110.0060.00322.14
8.2.100.0040.00817.91
8.2.90.0030.00619.17
8.2.80.0050.00317.97
8.2.70.0050.00517.75
8.2.60.0000.00917.80
8.2.50.0050.00318.07
8.2.40.0050.00518.28
8.2.30.0040.00419.34
8.2.20.0070.00017.84
8.2.10.0040.00418.21
8.2.00.0000.00817.95
8.1.280.0080.00825.92
8.1.270.0080.00023.82
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0060.00323.92
8.1.230.0000.01119.21
8.1.220.0050.00317.82
8.1.210.0040.00418.77
8.1.200.0070.00317.35
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0090.00018.83
8.1.160.0050.00222.14
8.1.150.0040.00418.86
8.1.140.0040.00417.55
8.1.130.0030.00317.80
8.1.120.0000.00717.64
8.1.110.0040.00417.61
8.1.100.0040.00417.49
8.1.90.0000.00717.57
8.1.80.0040.00417.52
8.1.70.0000.00717.41
8.1.60.0040.00417.60
8.1.50.0030.00617.68
8.1.40.0040.00417.68
8.1.30.0040.00417.79
8.1.20.0060.00317.81
8.1.10.0040.00417.63
8.1.00.0050.00217.67
8.0.300.0030.00618.77
8.0.290.0080.00016.88
8.0.280.0040.00418.41
8.0.270.0030.00317.21
8.0.260.0040.00417.13
8.0.250.0000.00717.03
8.0.240.0000.00717.09
8.0.230.0040.00417.03
8.0.220.0000.00717.07
8.0.210.0070.00016.95
8.0.200.0060.00316.98
8.0.190.0040.00417.02
8.0.180.0050.00217.04
8.0.170.0030.00517.01
8.0.160.0070.00017.02
8.0.150.0040.00416.94
8.0.140.0040.00416.99
8.0.130.0050.00313.46
8.0.120.0000.00817.02
8.0.110.0000.00717.05
8.0.100.0000.00716.93
8.0.90.0070.00016.94
8.0.80.0120.00317.07
8.0.70.0050.00216.84
8.0.60.0030.00517.00
8.0.50.0040.00417.06
8.0.30.0170.00617.09
8.0.20.0050.01417.40
8.0.10.0000.00817.17
8.0.00.0050.01216.96
7.4.330.0000.00615.02
7.4.320.0050.00516.87
7.4.300.0030.00316.63
7.4.290.0030.00316.62
7.4.280.0080.00016.82
7.4.270.0040.00416.77
7.4.260.0000.00816.63
7.4.250.0070.00016.70
7.4.240.0020.00516.79
7.4.230.0040.00416.73
7.4.220.0080.01116.74
7.4.210.0040.01116.75
7.4.200.0000.00716.76
7.4.160.0160.00016.72
7.4.150.0060.01117.40
7.4.140.0020.01617.86
7.4.130.0100.00716.63
7.4.120.0110.00816.66
7.4.110.0100.00716.65
7.4.100.0160.00616.49
7.4.90.0170.00016.71
7.4.80.0070.01719.39
7.4.70.0090.00916.72
7.4.60.0130.01016.50
7.4.50.0000.00816.75
7.4.40.0100.00616.78
7.4.30.0040.01116.73
7.4.00.0070.01015.23
7.3.330.0000.00513.48
7.3.320.0030.00313.32
7.3.310.0000.00716.46
7.3.300.0030.00316.27
7.3.290.0100.01016.48
7.3.280.0040.01116.47
7.3.270.0040.01417.40
7.3.260.0130.00316.51
7.3.250.0100.00916.63
7.3.240.0210.00516.48
7.3.230.0100.00716.59
7.3.210.0150.00716.64
7.3.200.0100.00719.39
7.3.190.0070.01016.78
7.3.180.0100.01016.46
7.3.170.0050.01116.76
7.3.160.0030.01316.78
7.3.120.0130.00314.98
7.3.110.0040.00814.69
7.3.100.0060.00915.02
7.3.90.0040.01115.25
7.3.80.0030.01315.27
7.3.70.0100.00315.11
7.3.60.0120.00415.18
7.3.50.0070.00715.02
7.3.40.0090.00615.05
7.3.30.0060.00615.09
7.3.20.0060.01016.60
7.3.10.0020.01516.88
7.3.00.0090.00716.76
7.2.330.0090.00916.86
7.2.320.0090.01216.89
7.2.310.0090.00916.86
7.2.300.0100.01016.73
7.2.290.0090.00616.79
7.2.240.0000.01315.02
7.2.230.0000.01014.95
7.2.220.0000.01414.92
7.2.210.0000.01415.28
7.2.200.0040.01114.98
7.2.190.0030.00615.15
7.2.180.0060.00615.33
7.2.170.0030.01515.07
7.2.160.0100.00715.18
7.2.150.0030.00916.84
7.2.140.0000.01816.88
7.2.130.0030.01017.22
7.2.120.0070.00917.04
7.2.110.0040.01117.10
7.2.100.0040.01216.95
7.2.90.0060.00916.99
7.2.80.0050.01116.95
7.2.70.0030.01316.94
7.2.60.0080.00517.05
7.2.50.0050.00816.78
7.2.40.0070.00917.06
7.2.30.0090.00617.17
7.2.20.0180.00317.09
7.2.10.0040.01117.15
7.2.00.0050.00917.12
7.1.330.0100.00316.17
7.1.320.0060.00315.85
7.1.310.0060.01015.74
7.1.300.0040.00715.86
7.1.290.0070.01015.91
7.1.280.0060.00816.14
7.1.270.0030.01115.91
7.1.260.0000.01216.10
7.1.250.0080.00815.91
7.1.200.0030.00916.04
7.1.70.0040.00417.27
7.1.60.0060.01319.61
7.1.50.0030.02117.23
7.1.00.0000.08022.32
7.0.200.1230.00714.66
7.0.140.0030.07022.08
7.0.60.0130.07720.04
7.0.50.0000.05017.86
7.0.40.0170.07020.30
7.0.30.0270.04720.23
7.0.20.0170.04320.25
7.0.10.0100.06020.14
7.0.00.0030.04720.27
5.6.280.0030.07321.08
5.6.210.0100.07720.68
5.6.200.0230.06718.16
5.6.190.0100.03720.46
5.6.180.0400.05720.46
5.6.170.0270.07720.47
5.6.160.0030.04320.50
5.6.150.0070.07318.19
5.6.140.0130.07718.17
5.6.130.0130.06018.13
5.6.120.0100.04320.88
5.6.110.0100.08020.97
5.6.100.0030.08321.00
5.6.90.0270.04721.00
5.6.80.0300.06320.38
5.5.350.0200.06020.40
5.5.340.0070.06017.98
5.5.330.0070.04020.28
5.5.320.0370.04720.18
5.5.310.0270.08320.30
5.5.300.0100.03017.92
5.5.290.0030.04318.00
5.5.280.0070.07020.98
5.5.270.0030.04020.75
5.5.260.0100.07720.76
5.5.250.0130.07020.62
5.5.240.0130.05720.15
5.4.450.0230.04719.50
5.4.440.0270.04019.48
5.4.430.0470.04019.49
5.4.420.0200.04719.40
5.4.410.0470.03719.29
5.4.400.0130.03719.20
5.4.390.0430.04019.22
5.4.380.0330.04718.84
5.4.370.0470.06018.58
5.4.360.0170.05718.79
5.4.350.0330.06718.80
5.4.340.0370.07018.63
5.4.320.0050.03812.51
5.4.310.0070.03812.50
5.4.300.0050.03912.50
5.4.290.0060.04812.50
5.4.280.0060.05012.40
5.4.270.0080.04212.39
5.4.260.0040.04012.40
5.4.250.0090.04612.39
5.4.240.0050.04012.40
5.4.230.0070.03612.39
5.4.220.0070.03612.39
5.4.210.0060.03612.39
5.4.200.0100.04812.39
5.4.190.0070.04512.39
5.4.180.0070.03512.38
5.4.170.0090.04512.39
5.4.160.0050.04312.39
5.4.150.0050.03712.38
5.4.140.0090.03412.07
5.4.130.0050.03812.06
5.4.120.0080.03312.02
5.4.110.0060.04312.01
5.4.100.0050.03812.01
5.4.90.0080.03612.01
5.4.80.0060.03712.02
5.4.70.0060.03612.01
5.4.60.0090.03312.01
5.4.50.0070.03512.01
5.4.40.0100.03212.00
5.4.30.0060.04312.00
5.4.20.0100.04112.00
5.4.10.0040.03812.00
5.4.00.0040.03711.48
5.3.290.0090.04712.80
5.3.280.0090.03612.71
5.3.270.0070.03912.72
5.3.260.0070.03912.72
5.3.250.0060.04012.72
5.3.240.0080.03612.72
5.3.230.0080.03712.71
5.3.220.0060.03812.68
5.3.210.0070.03812.68
5.3.200.0040.03912.68
5.3.190.0100.05012.68
5.3.180.0100.03812.67
5.3.170.0060.03612.67
5.3.160.0040.03912.67
5.3.150.0050.03812.67
5.3.140.0070.03512.66
5.3.130.0070.03812.66
5.3.120.0060.03912.66
5.3.110.0050.04112.66
5.3.100.0050.04012.13
5.3.90.0060.03712.11
5.3.80.0050.04112.11
5.3.70.0100.03712.11
5.3.60.0050.03712.09
5.3.50.0080.03512.03
5.3.40.0050.03812.03
5.3.30.0090.03211.99
5.3.20.0080.03311.77
5.3.10.0070.03411.74
5.3.00.0060.03711.73
5.2.170.0050.0319.23
5.2.160.0070.0409.23
5.2.150.0100.0259.23
5.2.140.0070.0279.22
5.2.130.0040.0299.19
5.2.120.0050.0319.18
5.2.110.0080.0289.19
5.2.100.0060.0319.19
5.2.90.0050.0329.18
5.2.80.0060.0299.18
5.2.70.0050.0349.18
5.2.60.0050.0309.14
5.2.50.0060.0299.11
5.2.40.0050.0309.09
5.2.30.0030.0329.06
5.2.20.0030.0309.05
5.2.10.0060.0298.94
5.2.00.0030.0318.80
5.1.60.0050.0238.09
5.1.50.0030.0258.09
5.1.40.0020.0278.06
5.1.30.0050.0258.41
5.1.20.0060.0268.43
5.1.10.0050.0258.16
5.1.00.0070.0238.16
5.0.50.0040.0206.64
5.0.40.0020.0216.50
5.0.30.0040.0356.30
5.0.20.0120.0216.27
5.0.10.0060.0186.25
5.0.00.0020.0336.25
4.4.90.0030.0174.78
4.4.80.0040.0154.76
4.4.70.0020.0164.75
4.4.60.0040.0214.75
4.4.50.0040.0204.77
4.4.40.0020.0254.71
4.4.30.0040.0144.76
4.4.20.0020.0164.84
4.4.10.0030.0164.85
4.4.00.0010.0284.76
4.3.110.0020.0184.66
4.3.100.0050.0144.66
4.3.90.0030.0164.64
4.3.80.0060.0224.59
4.3.70.0020.0174.63
4.3.60.0030.0164.63
4.3.50.0050.0184.63
4.3.40.0040.0244.54
4.3.30.0030.0163.30
4.3.20.0030.0163.27
4.3.10.0020.0193.24
4.3.00.0000.02013.95

preferences:
55.4 ms | 401 KiB | 5 Q