3v4l.org

run code in 300+ PHP versions simultaneously
<?php $psr4 = array( 'my\\first\\ns\\prefix\\' => 0, 'my\\second\\ns\\prefix\\' => 0, 'my\\third\\ns\prefix' => 0, ); foreach ($psr4 as $prefix => &$v) { $v = strlen($prefix); } $classes = array( 'my\\third\\ns\\prefix\\subns\\class', 'another\\ns\\prefix\\subns\\class', ); for ($i = 0; $i < 2000; $i++) { foreach ($classes as $class) { foreach ($psr4 as $prefix => $length) { if (!strncmp($class, $prefix, $length)) { //echo "$class -> $prefix\n"; break; } } } }

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)
8.3.60.0130.00318.25
8.3.50.0070.01222.01
8.3.40.0070.01118.71
8.3.30.0120.00418.88
8.3.20.0000.00820.21
8.3.10.0050.00321.90
8.3.00.0060.00319.13
8.2.180.0130.01016.32
8.2.170.0110.01122.96
8.2.160.0130.00620.56
8.2.150.0060.00324.18
8.2.140.0100.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00019.13
8.2.110.0030.00820.35
8.2.100.0000.01319.36
8.2.90.0000.00919.09
8.2.80.0000.00917.97
8.2.70.0060.00317.38
8.2.60.0000.00817.80
8.2.50.0030.00518.07
8.2.40.0080.00020.07
8.2.30.0040.00417.91
8.2.20.0060.00317.67
8.2.10.0050.00318.17
8.2.00.0030.00517.79
8.1.280.0070.01125.92
8.1.270.0000.00918.82
8.1.260.0070.00026.35
8.1.250.0110.00728.09
8.1.240.0090.00021.02
8.1.230.0040.00717.66
8.1.220.0050.00517.74
8.1.210.0040.00418.77
8.1.200.0050.00517.48
8.1.190.0060.00317.22
8.1.180.0030.00618.10
8.1.170.0060.00320.43
8.1.160.0080.00021.94
8.1.150.0040.00418.79
8.1.140.0080.00017.48
8.1.130.0070.00017.86
8.1.120.0020.00517.44
8.1.110.0000.00817.41
8.1.100.0000.00717.45
8.1.90.0000.00817.31
8.1.80.0000.00717.43
8.1.70.0000.00717.30
8.1.60.0000.01017.41
8.1.50.0060.00317.50
8.1.40.0080.00017.35
8.1.30.0030.00617.65
8.1.20.0030.00617.57
8.1.10.0040.00417.38
8.1.00.0080.00017.45
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0070.00018.44
8.0.270.0030.00617.25
8.0.260.0030.00317.21
8.0.250.0040.00416.88
8.0.240.0000.00816.88
8.0.230.0050.00216.84
8.0.220.0000.00716.89
8.0.210.0030.00516.92
8.0.200.0070.00016.77
8.0.190.0030.00616.91
8.0.180.0040.00416.91
8.0.170.0030.00616.90
8.0.160.0050.00316.95
8.0.150.0000.00816.95
8.0.140.0040.00416.87
8.0.130.0050.00513.32
8.0.120.0040.00416.86
8.0.110.0040.00416.76
8.0.100.0000.00916.88
8.0.90.0080.00016.82
8.0.80.0090.00916.83
8.0.70.0040.00416.77
8.0.60.0040.00416.91
8.0.50.0000.00816.84
8.0.30.0150.00617.05
8.0.20.0100.01217.40
8.0.10.0060.00317.05
8.0.00.0120.01116.70
7.4.330.0050.00515.03
7.4.320.0040.00416.51
7.4.300.0030.00316.52
7.4.290.0040.00416.58
7.4.280.0000.00816.39
7.4.270.0090.00016.53
7.4.260.0050.00316.59
7.4.250.0050.00316.40
7.4.240.0030.00616.48
7.4.230.0000.00816.59
7.4.220.0130.01316.54
7.4.210.0100.00616.58
7.4.200.0030.00516.61
7.4.160.0130.00316.34
7.4.150.0030.01517.40
7.4.140.0100.01417.86
7.4.130.0100.01216.43
7.4.120.0100.01116.52
7.4.110.0070.01116.48
7.4.100.0180.00716.52
7.4.90.0090.00916.53
7.4.80.0160.00819.39
7.4.70.0170.00716.45
7.4.60.0120.00616.33
7.4.50.0000.00916.48
7.4.40.0070.01016.50
7.4.30.0130.00616.47
7.4.00.0080.01014.87
7.3.330.0000.00613.20
7.3.320.0150.00013.08
7.3.310.0040.00416.25
7.3.300.0080.00016.30
7.3.290.0000.00816.27
7.3.280.0080.01216.32
7.3.270.0040.01317.40
7.3.260.0110.00716.40
7.3.250.0100.01216.52
7.3.240.0120.00616.32
7.3.230.0160.00716.66
7.3.210.0170.00016.68
7.3.200.0120.01219.39
7.3.190.0080.00816.42
7.3.180.0060.01016.36
7.3.170.0070.01016.60
7.3.160.0100.00616.30
7.3.120.0070.01214.88
7.3.110.0070.01114.84
7.3.100.0070.01014.73
7.3.90.0080.00714.83
7.3.80.0040.01214.91
7.3.70.0070.01014.93
7.3.60.0050.01014.67
7.3.50.0020.01414.83
7.3.40.0080.00914.79
7.3.30.0040.00914.73
7.3.20.0090.00716.72
7.3.10.0050.01116.65
7.3.00.0040.01016.64
7.2.330.0060.01216.68
7.2.320.0090.00916.60
7.2.310.0070.01016.59
7.2.300.0070.01016.71
7.2.290.0150.00916.43
7.2.250.0060.01215.15
7.2.240.0040.01614.88
7.2.230.0080.00915.05
7.2.220.0060.00815.08
7.2.210.0080.00915.02
7.2.200.0040.01114.97
7.2.190.0040.01415.09
7.2.180.0050.00914.86
7.2.170.0090.00814.93
7.2.160.0060.01214.83
7.2.150.0000.01716.79
7.2.140.0000.01516.65
7.2.130.0000.01417.02
7.2.120.0030.01316.92
7.2.110.0060.00616.67
7.2.100.0070.01316.70
7.2.90.0000.01616.92
7.2.80.0030.01316.82
7.2.70.0090.00616.70
7.2.60.0040.00716.74
7.2.50.0040.01416.96
7.2.40.0030.01316.82
7.2.30.0070.00717.11
7.2.20.0030.01016.88
7.2.10.0040.01116.91
7.2.00.0040.00917.95
7.1.330.0070.01115.76
7.1.320.0040.01115.65
7.1.310.0040.01415.79
7.1.300.0040.01115.79
7.1.290.0040.01215.79
7.1.280.0060.00815.85
7.1.270.0030.01515.67
7.1.260.0050.01215.71
7.1.250.0070.01115.86
7.1.240.0060.00915.61
7.1.230.0000.01915.80
7.1.220.0120.00615.88
7.1.210.0080.01215.89
7.1.200.0030.01015.84
7.1.190.0090.00615.67
7.1.180.0100.00716.06
7.1.170.0060.00615.86
7.1.160.0080.00815.95
7.1.150.0000.01916.05
7.1.140.0030.01015.95
7.1.130.0130.00315.81
7.1.120.0060.01315.90
7.1.110.0070.01015.93
7.1.100.0050.01116.98
7.1.90.0000.01215.88
7.1.80.0060.01315.80
7.1.70.0020.01216.34
7.1.60.0050.01117.62
7.1.50.0080.01316.48
7.1.40.0000.01815.54
7.1.30.0080.01115.65
7.1.20.0030.01315.77
7.1.10.0030.01015.93
7.1.00.0030.04519.12
7.0.330.0000.01815.43
7.0.320.0100.01015.29
7.0.310.0000.01715.20
7.0.300.0040.01215.45
7.0.290.0040.01415.45
7.0.280.0030.00815.40
7.0.270.0100.01015.47
7.0.260.0000.02315.36
7.0.250.0000.01115.46
7.0.240.0070.01015.40
7.0.230.0030.01215.57
7.0.220.0160.00615.39
7.0.210.0120.00915.54
7.0.200.0110.00815.12
7.0.190.0000.01815.36
7.0.180.0040.01415.36
7.0.170.0090.00915.45
7.0.160.0070.01015.50
7.0.150.0080.01215.34
7.0.140.0050.04418.63
7.0.130.0070.01115.61
7.0.120.0070.01015.43
7.0.110.0000.01515.60
7.0.100.0000.01115.60
7.0.90.0030.01415.39
7.0.80.0000.01615.43
7.0.70.0140.00615.20
7.0.60.0140.04017.55
7.0.50.0100.03716.71
7.0.40.0050.04616.78
7.0.30.0200.04216.80
7.0.20.0060.03116.82
7.0.10.0170.04516.85
7.0.00.0130.04116.78
5.6.400.0060.01014.24
5.6.390.0030.01714.39
5.6.380.0110.00814.46
5.6.370.0090.00914.37
5.6.360.0070.01414.45
5.6.350.0030.01014.40
5.6.340.0000.01614.49
5.6.330.0030.02114.34
5.6.320.0000.01814.50
5.6.310.0070.01414.24
5.6.300.0070.01314.12
5.6.290.0100.01013.97
5.6.280.0030.04417.71
5.6.270.0030.01714.08
5.6.260.0000.02114.44
5.6.250.0030.01614.58
5.6.240.0100.01314.16
5.6.230.0000.02414.26
5.6.220.0070.01414.22
5.6.210.0050.02717.35
5.6.200.0070.03016.18
5.6.190.0100.02617.39
5.6.180.0200.04317.28
5.6.170.0200.03817.49
5.6.160.0070.02817.27
5.6.150.0050.03016.10
5.6.140.0030.02916.22
5.6.130.0060.03816.35
5.6.120.0080.04817.66
5.6.110.0070.04717.85
5.6.100.0030.04917.62
5.6.90.0070.05217.54
5.6.80.0070.03717.29
5.6.70.0170.04417.21
5.6.60.0030.01414.18
5.6.50.0030.01314.22
5.6.40.0060.01514.26
5.6.30.0040.01514.12
5.6.20.0000.01613.95
5.6.10.0040.01414.38
5.6.00.0070.01014.45
5.5.380.0040.01814.40
5.5.370.0030.01714.35
5.5.360.0030.01314.40
5.5.350.0200.04317.33
5.5.340.0120.03516.06
5.5.330.0080.05117.28
5.5.320.0060.05417.32
5.5.310.0210.03817.35
5.5.300.0080.03316.03
5.5.290.0060.03816.10
5.5.280.0060.03717.44
5.5.270.0100.03117.44
5.5.260.0130.04517.52
5.5.250.0110.04017.19
5.5.240.0080.04517.21
5.5.230.0060.01314.25
5.5.220.0090.01314.23
5.5.210.0000.01714.20
5.5.200.0130.00613.89
5.5.190.0030.01314.41
5.5.180.0070.01114.27
5.5.170.0000.01714.30
5.5.160.0000.02114.14
5.5.150.0120.00914.33
5.5.140.0030.01014.32
5.5.130.0060.01314.22
5.5.120.0040.01114.23
5.5.110.0030.01614.26
5.5.100.0060.01614.21
5.5.90.0070.01414.25
5.5.80.0080.00614.05
5.5.70.0060.00914.28
5.5.60.0100.01014.39
5.5.50.0060.00814.11
5.5.40.0040.01814.20
5.5.30.0060.00914.10
5.5.20.0070.01013.90
5.5.10.0110.01113.90
5.5.00.0030.01713.89
5.4.450.0280.03915.19
5.4.440.0200.03415.01
5.4.430.0250.04015.17
5.4.420.0230.03915.22
5.4.410.0300.03315.01
5.4.400.0220.02814.90
5.4.390.0180.02914.93
5.4.380.0220.04415.12
5.4.370.0270.04014.87
5.4.360.0210.02614.95
5.4.350.0220.03215.03
5.4.340.0200.03714.85
5.4.330.0040.00710.89
5.4.320.0220.03114.98
5.4.310.0270.03814.90
5.4.300.0250.04014.91
5.4.290.0230.02814.89
5.4.280.0220.03215.06
5.4.270.0210.03815.05
5.4.260.0270.02814.85
5.4.250.0200.03314.94
5.4.240.0250.04414.92
5.4.230.0250.02614.97
5.4.220.0230.04414.95
5.4.210.0290.03814.86
5.4.200.0320.03415.15
5.4.190.0300.03914.85
5.4.180.0200.03115.06
5.4.170.0190.03115.11
5.4.160.0220.02514.71
5.4.150.0250.02714.84
5.4.140.0190.02613.53
5.4.130.0200.03313.59
5.4.120.0250.04013.44
5.4.110.0250.02113.63
5.4.100.0320.02313.62
5.4.90.0250.03913.66
5.4.80.0220.02713.65
5.4.70.0220.02713.71
5.4.60.0250.02613.69
5.4.50.0220.03713.67
5.4.40.0220.04213.63
5.4.30.0230.02513.51
5.4.20.0260.02613.62
5.4.10.0250.03713.72
5.4.00.0330.02113.32
5.3.290.0570.06714.51
5.3.280.0430.04314.69
5.3.270.0500.07014.70
5.3.260.0430.03314.70
5.3.250.0400.06314.62
5.3.240.0430.07314.45
5.3.230.0470.07014.58
5.3.220.0300.05714.66
5.3.210.0400.04714.50
5.3.200.0430.07014.43
5.3.190.0530.03714.51
5.3.180.0430.07314.51
5.3.170.0370.04714.51
5.3.160.0270.04714.61
5.3.150.0430.03714.51
5.3.140.0430.06714.43
5.3.130.0400.06014.38
5.3.120.0430.06714.53
5.3.110.0570.06314.34
5.3.100.0470.07713.89
5.3.90.0430.07014.04
5.3.80.0330.04014.03
5.3.70.0330.04013.87
5.3.60.0370.03713.78
5.3.50.0470.05713.74
5.3.40.0400.03313.80
5.3.30.0470.06713.89
5.3.20.0330.04713.64
5.3.10.0370.04313.50
5.3.00.0430.04713.48
5.2.170.0400.06012.29
5.2.160.0570.03012.29
5.2.150.0400.03312.29
5.2.140.0330.05712.29
5.2.130.0400.04312.29
5.2.120.0370.02712.29
5.2.110.0370.03312.29
5.2.100.0270.03712.29
5.2.90.0330.03712.29
5.2.80.0470.04712.29
5.2.70.0330.06012.29
5.2.60.0330.05312.29
5.2.50.0300.04012.29
5.2.40.0400.02712.29
5.2.30.0200.03312.29
5.2.20.0270.02712.29
5.2.10.0230.03012.29
5.2.00.0230.03012.29
5.1.60.0330.05012.29
5.1.50.0170.03312.29
5.1.40.0230.02712.29
5.1.30.0230.04012.29
5.1.20.0370.05012.29
5.1.10.0370.05712.29
5.1.00.0200.03712.29
5.0.50.0100.03012.29
5.0.40.0100.02712.29
5.0.30.0130.07712.29
5.0.20.0170.03012.29
5.0.10.0100.02712.29
5.0.00.0100.04012.29
4.4.90.0130.01312.29
4.4.80.0100.01712.29
4.4.70.0100.02012.29
4.4.60.0100.02312.29
4.4.50.0130.01712.29
4.4.40.0200.05012.29
4.4.30.0130.01712.29
4.4.20.0170.03312.29
4.4.10.0200.02012.29
4.4.00.0170.05312.29
4.3.110.0130.01312.29
4.3.100.0170.03012.29
4.3.90.0130.03012.29
4.3.80.0130.03312.29
4.3.70.0200.03312.29
4.3.60.0170.02712.29
4.3.50.0130.02312.29
4.3.40.0270.04312.29
4.3.30.0070.03712.29
4.3.20.0100.02312.29
4.3.10.0100.02012.29
4.3.00.0070.02712.29

preferences:
48.95 ms | 401 KiB | 5 Q