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)
8.3.70.0080.00816.63
8.3.60.0110.00418.43
8.3.50.0100.00822.08
8.3.40.0110.00418.96
8.3.30.0180.00318.95
8.3.20.0040.00420.25
8.3.10.0000.00920.75
8.3.00.0050.00519.38
8.2.180.0070.00718.54
8.2.170.0090.00922.96
8.2.160.0100.01020.43
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0000.00821.11
8.2.110.0070.00420.88
8.2.100.0000.01117.97
8.2.90.0030.00519.21
8.2.80.0040.00417.97
8.2.70.0030.00517.75
8.2.60.0030.00617.80
8.2.50.0070.00318.10
8.2.40.0040.00718.34
8.2.30.0040.00419.32
8.2.20.0040.00417.84
8.2.10.0040.00418.03
8.2.00.0000.00817.90
8.1.280.0170.00325.92
8.1.270.0050.00323.98
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0070.00321.12
8.1.230.0080.00417.77
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0030.00617.50
8.1.190.0090.00017.23
8.1.180.0040.00418.10
8.1.170.0000.00818.61
8.1.160.0000.00721.95
8.1.150.0000.00818.92
8.1.140.0000.00717.53
8.1.130.0030.00317.95
8.1.120.0070.00017.61
8.1.110.0040.00417.60
8.1.100.0040.00417.54
8.1.90.0070.00017.52
8.1.80.0070.00017.50
8.1.70.0000.00717.63
8.1.60.0030.00617.63
8.1.50.0040.00417.72
8.1.40.0000.00817.59
8.1.30.0040.00417.81
8.1.20.0050.00317.65
8.1.10.0040.00417.69
8.1.00.0000.00717.66
8.0.300.0040.00418.77
8.0.290.0030.00716.63
8.0.280.0030.00318.38
8.0.270.0000.00817.20
8.0.260.0000.00717.32
8.0.250.0000.00717.05
8.0.240.0000.00617.11
8.0.230.0020.00517.09
8.0.220.0030.00316.92
8.0.210.0030.00317.05
8.0.200.0040.00417.09
8.0.190.0100.00017.12
8.0.180.0040.00417.07
8.0.170.0070.00016.98
8.0.160.0000.00717.13
8.0.150.0000.00717.05
8.0.140.0050.00316.98
8.0.130.0060.00013.46
8.0.120.0050.00317.03
8.0.110.0000.00717.07
8.0.100.0040.00417.04
8.0.90.0000.00717.15
8.0.80.0110.00417.02
8.0.70.0000.00816.92
8.0.60.0030.00616.93
8.0.50.0000.00816.94
8.0.30.0100.00917.46
8.0.20.0090.01017.50
8.0.10.0070.00017.28
8.0.00.0080.01216.99
7.4.330.0060.00015.11
7.4.320.0000.00916.73
7.4.300.0060.00016.67
7.4.290.0070.00016.71
7.4.280.0040.00416.72
7.4.270.0070.00016.75
7.4.260.0000.00716.68
7.4.250.0070.00016.70
7.4.240.0050.00216.78
7.4.230.0030.00316.62
7.4.220.0120.00616.73
7.4.210.0150.00616.90
7.4.200.0030.00316.52
7.4.160.0040.01116.57
7.4.150.0150.01117.40
7.4.140.0120.00817.86
7.4.130.0150.00216.91
7.4.120.0100.00816.64
7.4.110.0140.00716.79
7.4.100.0120.00916.61
7.4.90.0070.01016.69
7.4.80.0140.00319.39
7.4.70.0070.01316.89
7.4.60.0030.01316.61
7.4.50.0050.00316.71
7.4.40.0030.01216.57
7.4.30.0080.00816.58
7.4.00.0150.00015.16
7.3.330.0030.00313.46
7.3.320.0000.00513.25
7.3.310.0000.00716.28
7.3.300.0030.00316.33
7.3.290.0100.01016.49
7.3.280.0070.01016.43
7.3.270.0080.00917.40
7.3.260.0100.01016.54
7.3.250.0120.00916.50
7.3.240.0120.01216.57
7.3.230.0080.00816.63
7.3.210.0030.01516.54
7.3.200.0140.00319.39
7.3.190.0120.00616.52
7.3.180.0130.00316.89
7.3.170.0100.00616.88
7.3.160.0100.00716.78
7.3.10.0030.01016.58
7.3.00.0150.00216.66
7.2.330.0100.00716.97
7.2.320.0140.01016.89
7.2.310.0090.00916.61
7.2.300.0090.01516.78
7.2.290.0130.00316.81
7.2.130.0130.00216.94
7.2.120.0060.00816.81
7.2.110.0070.00716.90
7.2.100.0110.00416.93
7.2.90.0110.00516.86
7.2.80.0070.00616.84
7.2.70.0090.00816.87
7.2.60.0080.00616.91
7.2.50.0060.00916.92
7.2.40.0090.00616.96
7.2.30.0080.00616.95
7.2.20.0070.00517.04
7.2.10.0060.00517.08
7.2.00.0050.00617.93
7.1.250.0050.00815.71
7.1.100.0040.00418.63
7.1.70.0000.00917.34
7.1.60.0090.01319.61
7.1.50.0160.00917.29
7.1.00.0000.08022.49
7.0.200.0380.01014.68
7.0.140.0170.06322.07
7.0.60.0070.08319.92
7.0.50.0030.08317.82
7.0.40.0070.07020.20
7.0.30.0530.07320.16
7.0.20.0200.04020.17
7.0.10.0070.08720.24
7.0.00.0100.05720.34
5.6.280.0030.07321.11
5.6.210.0100.07020.65
5.6.200.0030.06718.16
5.6.190.0070.04020.58
5.6.180.0500.06720.64
5.6.170.0200.06020.58
5.6.160.0100.06020.44
5.6.150.0070.08318.22
5.6.140.0100.07718.25
5.6.130.0000.04718.14
5.6.120.0200.07020.73
5.6.110.0130.07721.14
5.6.100.0170.08021.01
5.6.90.0070.05021.00
5.6.80.0100.07320.54
5.5.350.0200.08020.45
5.5.340.0070.08318.02
5.5.330.0030.08720.27
5.5.320.0400.07320.39
5.5.310.0200.08720.27
5.5.300.0000.04018.08
5.5.290.0030.04718.07
5.5.280.0100.08020.88
5.5.270.0030.04020.86
5.5.260.0100.08020.87
5.5.250.0030.06020.68
5.5.240.0100.07720.16
5.4.450.0230.04319.41
5.4.440.0330.04319.29
5.4.430.0170.04719.57
5.4.420.0200.05019.18
5.4.410.0300.04019.36
5.4.400.0130.05019.22
5.4.390.0330.03719.07
5.4.380.0200.06018.47
5.4.370.0230.05318.73
5.4.360.0270.04318.76
5.4.350.0270.04718.79
5.4.340.0270.05318.84
5.4.320.0060.03612.50
5.4.310.0050.03912.50
5.4.300.0090.03412.51
5.4.290.0030.04112.50
5.4.280.0050.03512.40
5.4.270.0060.03512.40
5.4.260.0060.03712.39
5.4.250.0030.04012.39
5.4.240.0060.03612.39
5.4.230.0050.03912.39
5.4.220.0070.03612.39
5.4.210.0080.03412.39
5.4.200.0110.03312.39
5.4.190.0070.04312.39
5.4.180.0050.03812.38
5.4.170.0080.03512.39
5.4.160.0070.03612.39
5.4.150.0070.03612.39
5.4.140.0050.03912.07
5.4.130.0100.03512.06
5.4.120.0080.03612.02
5.4.110.0070.03712.01
5.4.100.0120.03412.01
5.4.90.0040.03912.01
5.4.80.0060.03712.02
5.4.70.0020.04012.01
5.4.60.0060.03612.00
5.4.50.0080.04012.01
5.4.40.0070.03911.99
5.4.30.0050.03711.99
5.4.20.0070.03412.00
5.4.10.0060.03412.00
5.4.00.0040.03811.48
5.3.290.0060.04612.80
5.3.280.0070.04612.71
5.3.270.0080.04012.72
5.3.260.0080.03912.72
5.3.250.0040.04012.72
5.3.240.0030.04112.72
5.3.230.0110.03412.71
5.3.220.0090.03512.68
5.3.210.0100.03512.68
5.3.200.0090.03512.68
5.3.190.0060.03812.68
5.3.180.0080.04412.67
5.3.170.0060.03912.66
5.3.160.0090.03812.68
5.3.150.0060.04612.67
5.3.140.0090.03612.66
5.3.130.0080.04112.66
5.3.120.0090.03612.66
5.3.110.0090.03612.66
5.3.100.0060.03812.13
5.3.90.0050.03712.11
5.3.80.0060.04212.10
5.3.70.0100.04812.10
5.3.60.0050.03812.09
5.3.50.0060.03712.03
5.3.40.0070.03612.03
5.3.30.0060.03611.99
5.3.20.0080.04111.77
5.3.10.0080.03511.74
5.3.00.0050.03611.73
5.2.170.0050.0309.23
5.2.160.0050.0289.23
5.2.150.0060.0359.23
5.2.140.0060.0309.22
5.2.130.0050.0299.18
5.2.120.0030.0319.19
5.2.110.0060.0289.19
5.2.100.0070.0279.18
5.2.90.0100.0359.19
5.2.80.0050.0299.18
5.2.70.0050.0309.18
5.2.60.0050.0389.14
5.2.50.0080.0339.11
5.2.40.0030.0319.09
5.2.30.0040.0309.05
5.2.20.0060.0289.05
5.2.10.0050.0298.94
5.2.00.0060.0278.80
5.1.60.0040.0248.09
5.1.50.0030.0288.09
5.1.40.0000.0288.06
5.1.30.0060.0258.41
5.1.20.0040.0328.43
5.1.10.0040.0318.16
5.1.00.0070.0258.16
5.0.50.0030.0216.64
5.0.40.0050.0206.50
5.0.30.0040.0316.31
5.0.20.0060.0176.27
5.0.10.0070.0186.26
5.0.00.0040.0386.25
4.4.90.0020.0184.78
4.4.80.0050.0214.75
4.4.70.0050.0184.76
4.4.60.0040.0154.75
4.4.50.0020.0164.77
4.4.40.0040.0254.71
4.4.30.0060.0154.76
4.4.20.0050.0164.84
4.4.10.0060.0134.85
4.4.00.0020.0264.76
4.3.110.0030.0154.67
4.3.100.0030.0224.67
4.3.90.0040.0214.64
4.3.80.0030.0274.59
4.3.70.0030.0154.63
4.3.60.0020.0164.63
4.3.50.0030.0174.63
4.3.40.0050.0264.54
4.3.30.0010.0183.30
4.3.20.0030.0213.28
4.3.10.0010.0173.24
4.3.00.0230.01013.95

preferences:
45.98 ms | 401 KiB | 5 Q