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); } $classes = array( 'my\\third\\ns\\prefix\\subns\\class', 'another\\ns\\prefix\\subns\\class', ); foreach ($classes as $class) { foreach ($psr4 as $prefix => $length) { if (0 === strpos($class, $prefix)) { echo "$class -> $prefix\n"; break; } } } echo "-----------------------------\”"; foreach ($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)
8.3.60.0120.00318.21
8.3.50.0160.00522.04
8.3.40.0120.00918.80
8.3.30.0150.00018.95
8.3.20.0050.00320.34
8.3.10.0060.00321.82
8.3.00.0040.00419.38
8.2.180.0120.00918.29
8.2.170.0030.01222.96
8.2.160.0070.00720.33
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0000.00819.23
8.2.110.0060.00320.47
8.2.100.0040.00817.50
8.2.90.0060.00319.21
8.2.80.0030.00617.97
8.2.70.0130.00017.63
8.2.60.0000.00817.92
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0060.00317.98
8.2.20.0030.00617.70
8.2.10.0000.00818.18
8.2.00.0040.00417.82
8.1.280.0080.00825.92
8.1.270.0030.00618.75
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.92
8.1.230.0110.00017.64
8.1.220.0000.00817.77
8.1.210.0030.00518.77
8.1.200.0090.00017.35
8.1.190.0080.00017.24
8.1.180.0040.00418.10
8.1.170.0000.00820.41
8.1.160.0040.00422.01
8.1.150.0040.00418.80
8.1.140.0000.00817.50
8.1.130.0030.00517.88
8.1.120.0070.00017.42
8.1.110.0040.00417.49
8.1.100.0000.00717.44
8.1.90.0040.00417.46
8.1.80.0070.00017.48
8.1.70.0050.00217.48
8.1.60.0000.00817.61
8.1.50.0060.00317.52
8.1.40.0070.00017.43
8.1.30.0040.00417.54
8.1.20.0040.00417.55
8.1.10.0040.00417.33
8.1.00.0000.00817.44
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0030.00318.34
8.0.270.0050.00217.22
8.0.260.0030.00317.17
8.0.250.0000.00716.82
8.0.240.0040.00416.84
8.0.230.0000.00816.99
8.0.220.0070.00016.80
8.0.210.0080.00016.75
8.0.200.0040.00417.02
8.0.190.0060.00316.93
8.0.180.0000.00816.95
8.0.170.0050.00316.75
8.0.160.0030.00517.01
8.0.150.0000.00716.91
8.0.140.0050.00216.86
8.0.130.0030.00613.34
8.0.120.0000.00816.88
8.0.110.0040.00416.77
8.0.100.0000.00716.74
8.0.90.0000.00716.91
8.0.80.0060.01016.86
8.0.70.0040.00416.92
8.0.60.0040.00416.99
8.0.50.0000.00716.79
8.0.30.0140.01217.13
8.0.20.0100.00817.40
8.0.10.0070.00017.05
8.0.00.0130.00516.78
7.4.330.0060.00015.05
7.4.320.0030.00316.47
7.4.300.0000.00616.50
7.4.290.0000.00716.55
7.4.280.0000.00816.59
7.4.270.0040.00416.52
7.4.260.0070.00016.54
7.4.250.0000.00816.61
7.4.240.0050.00216.54
7.4.230.0000.00716.39
7.4.220.0090.00916.45
7.4.210.0070.00716.57
7.4.200.0050.00316.49
7.4.160.0090.00616.52
7.4.150.0090.00917.40
7.4.140.0140.00617.86
7.4.130.0100.00716.53
7.4.120.0100.00716.44
7.4.110.0070.01116.43
7.4.100.0140.00316.41
7.4.90.0100.00716.36
7.4.80.0120.00819.39
7.4.70.0060.01016.46
7.4.60.0040.01216.48
7.4.50.0000.00416.53
7.4.40.0070.01416.38
7.4.30.0060.01216.41
7.4.00.0040.01114.72
7.3.330.0030.00613.17
7.3.320.0120.00413.25
7.3.310.0030.00316.26
7.3.300.0000.00716.24
7.3.290.0000.00716.35
7.3.280.0100.00716.34
7.3.270.0100.00717.40
7.3.260.0080.00816.31
7.3.250.0150.00516.57
7.3.240.0040.01216.56
7.3.230.0160.00316.39
7.3.210.0060.01016.59
7.3.200.0160.00619.39
7.3.190.0150.00616.39
7.3.180.0040.01416.48
7.3.170.0080.00816.32
7.3.160.0120.00316.48
7.3.120.0080.00515.01
7.3.110.0000.01614.78
7.3.100.0030.01014.81
7.3.90.0060.01014.92
7.3.80.0110.00614.65
7.3.70.0040.01214.92
7.3.60.0040.00414.62
7.3.50.0040.01214.68
7.3.40.0040.00414.91
7.3.30.0030.01214.73
7.3.20.0090.00616.56
7.3.10.0090.00616.46
7.3.00.0070.00716.58
7.2.330.0100.01016.39
7.2.320.0110.00816.40
7.2.310.0030.01316.80
7.2.300.0030.01416.54
7.2.290.0140.00416.71
7.2.240.0120.00315.00
7.2.230.0070.00714.77
7.2.220.0050.00815.11
7.2.210.0050.00514.74
7.2.200.0120.00414.75
7.2.190.0110.00415.25
7.2.180.0070.01015.09
7.2.170.0070.01014.97
7.2.160.0120.00015.11
7.2.150.0060.00816.80
7.2.140.0090.00616.96
7.2.130.0070.00716.61
7.2.120.0090.00617.06
7.2.110.0030.01316.68
7.2.100.0000.01716.83
7.2.90.0090.00617.03
7.2.80.0030.01516.96
7.2.70.0070.00716.95
7.2.60.0060.00917.01
7.2.50.0000.01216.77
7.2.40.0040.01416.83
7.2.30.0120.00616.94
7.2.20.0030.00716.99
7.2.10.0040.01116.98
7.2.00.0110.00517.69
7.1.330.0060.00315.70
7.1.320.0060.00615.62
7.1.310.0070.00715.77
7.1.300.0060.00815.93
7.1.290.0040.01115.95
7.1.280.0070.00715.84
7.1.270.0000.01315.71
7.1.260.0050.00615.84
7.1.250.0090.00315.95
7.1.100.0040.00717.59
7.1.70.0030.01217.22
7.1.60.0110.00719.50
7.1.50.0070.01417.01
7.1.00.0070.07322.52
7.0.200.0680.00714.68
7.0.140.0000.07022.01
7.0.110.0570.08019.91
7.0.100.0500.03319.85
7.0.90.0330.04019.82
7.0.80.0070.04319.86
7.0.70.0130.04719.86
7.0.60.0230.03319.88
7.0.50.0100.04020.48
7.0.40.0030.06320.09
7.0.30.0030.07020.26
7.0.20.0070.04020.16
7.0.10.0100.03720.21
7.0.00.0070.03720.15
5.6.260.0170.06720.67
5.6.250.0030.07320.64
5.6.240.0170.06720.63
5.6.230.0100.04020.58
5.6.220.0100.03320.56
5.6.210.0070.03720.52
5.6.200.0000.04721.23
5.6.190.0070.06021.08
5.6.180.0000.04720.96
5.6.170.0000.06021.08
5.6.160.0100.04021.14
5.6.150.0000.04321.25
5.6.140.0030.06021.08
5.6.130.0070.06321.14
5.6.120.0030.04721.14
5.6.110.0100.04320.89
5.6.100.0000.04721.25
5.6.90.0130.04721.12
5.6.80.0030.04020.58
5.6.70.0100.03720.67
5.6.60.0030.04020.36
5.6.50.0070.03720.46
5.6.40.0000.05720.50
5.6.30.0100.03020.52
5.6.20.0030.04020.44
5.6.10.0100.05720.35
5.6.00.0230.04320.55
5.5.380.0000.04320.31
5.5.370.0030.04320.27
5.5.360.0070.04020.31
5.5.350.0030.04020.40
5.5.340.0070.04320.96
5.5.330.0070.08020.81
5.5.320.0030.04020.88
5.5.310.0100.03721.04
5.5.300.0000.05320.89
5.5.290.0100.05021.04
5.5.280.0000.08020.70
5.5.270.0030.04020.89
5.5.260.0000.04720.84
5.5.250.0030.03720.70
5.5.240.0030.03720.16
5.5.230.0070.04320.23
5.5.220.0100.03320.19
5.5.210.0000.04020.12
5.5.200.0070.08020.17
5.5.190.0030.03720.05
5.5.180.0070.03720.25
5.5.160.0070.03720.39
5.5.150.0130.06320.29
5.5.140.0100.06320.04
5.5.130.0100.07320.11
5.5.120.0130.07020.25
5.5.110.0030.08020.33
5.5.100.0030.05720.25
5.5.90.0130.07020.27
5.5.80.0100.07020.17
5.5.70.0070.07720.22
5.5.60.0170.05320.02
5.5.50.0030.08020.00
5.5.40.0100.07020.11
5.5.30.0130.07020.21
5.5.20.0170.07020.19
5.5.10.0070.08020.18
5.5.00.0130.05020.13
5.4.450.0030.04019.45
5.4.440.0070.03719.35
5.4.430.0030.04019.40
5.4.420.0100.03719.30
5.4.410.0030.04019.47
5.4.400.0030.05019.12
5.4.390.0000.04319.10
5.4.380.0030.03719.03
5.4.370.0070.03719.00
5.4.360.0000.04019.27
5.4.350.0000.04019.07
5.4.340.0070.03318.96
5.4.320.0000.04019.20
5.4.310.0100.05719.07
5.4.300.0070.06319.04
5.4.290.0170.06019.02
5.4.280.0100.07019.02
5.4.270.0070.08318.94
5.4.260.0070.04319.12
5.4.250.0170.07019.09
5.4.240.0100.06719.16
5.4.230.0200.03718.92
5.4.220.0100.05018.98
5.4.210.0130.06718.95
5.4.200.0100.07019.11
5.4.190.0100.07019.06
5.4.180.0100.07719.27
5.4.170.0100.07018.92
5.4.160.0130.06719.23
5.4.150.0130.06719.09
5.4.140.0070.05316.32
5.4.130.0170.06716.50
5.4.120.0130.06716.13
5.4.110.0070.04716.49
5.4.100.0100.07016.14
5.4.90.0130.07016.29
5.4.80.0100.07016.37
5.4.70.0070.05016.37
5.4.60.0100.07316.16
5.4.50.0030.07716.34
5.4.40.0170.06316.53
5.4.30.0130.06716.34
5.4.20.0130.05716.20
5.4.10.0170.06016.27
5.4.00.0130.03315.63
5.3.290.0100.05314.52
5.3.280.0030.07714.68
5.3.270.0030.07314.55
5.3.260.0000.07014.55
5.3.250.0070.07714.61
5.3.240.0100.07014.49
5.3.230.0130.04714.50
5.3.220.0000.08314.65
5.3.210.0130.07314.45
5.3.200.0100.07314.59
5.3.190.0000.05014.48
5.3.180.0100.06314.59
5.3.170.0070.07314.48
5.3.160.0070.07314.42
5.3.150.0100.07314.65
5.3.140.0070.07714.39
5.3.130.0000.08314.63
5.3.120.0070.07714.62
5.3.110.0100.07314.42
5.3.100.0070.07314.07
5.3.90.0130.06314.13
5.3.80.0070.07714.04
5.3.70.0100.04714.10
5.3.60.0000.04313.95
5.3.50.0100.06713.81
5.3.40.0130.07013.97
5.3.30.0030.05713.82
5.3.20.0030.07313.71
5.3.10.0070.05713.61
5.3.00.0100.06313.47
5.2.170.0030.06011.91
5.2.160.0030.03011.91
5.2.150.0070.06011.91
5.2.140.0130.05011.91
5.2.130.0070.05311.91
5.2.120.0030.03311.91
5.2.110.0030.03711.91
5.2.100.0030.06311.91
5.2.90.0100.06011.91
5.2.80.0070.03311.91
5.2.70.0130.05011.91
5.2.60.0070.06011.91
5.2.50.0070.06311.91
5.2.40.0030.04711.91
5.2.30.0030.06311.91
5.2.20.0100.06011.91
5.2.10.0070.06011.91
5.2.00.0100.05011.91
5.1.60.0030.05311.91
5.1.50.0070.05011.91
5.1.40.0070.05311.91
5.1.30.0070.05311.91
5.1.20.0030.05711.91
5.1.10.0070.04311.91
5.1.00.0030.05711.91
5.0.50.0000.04311.91
5.0.40.0000.03711.91
5.0.30.0070.04011.91
5.0.20.0030.03011.91
5.0.10.0030.04011.91
5.0.00.0030.06311.91
4.4.90.0030.03311.91
4.4.80.0000.03711.91
4.4.70.0070.02311.91
4.4.60.0030.03311.91
4.4.50.0070.02311.91
4.4.40.0030.02711.91
4.4.30.0100.03011.91
4.4.20.0030.02711.91
4.4.10.0030.02311.91
4.4.00.0030.03711.91
4.3.110.0030.02311.91
4.3.100.0000.02711.91
4.3.90.0000.02711.91
4.3.80.0000.05711.91
4.3.70.0000.03711.91
4.3.60.0000.03011.91
4.3.50.0000.03011.91
4.3.40.0030.05011.91
4.3.30.0030.01711.91
4.3.20.0000.04011.91
4.3.10.0000.02011.91
4.3.00.0030.03311.91

preferences:
46.58 ms | 401 KiB | 5 Q