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run code in 300+ PHP versions simultaneously
<?php class Test{ const ABC♥ = "alphabet"; } $class = new ReflectionClass("Test"); $bad_char = "♥"; $constants = $class->getConstants(); var_dump($constants); /* for ($i = 0, $max = count($constants); $i < $max; $i++) { if ( mb_strpos( $constants[$i], $bad_char) !== false ) { trigger_error( "'$bad_char' in '$constant'" ); } } // Notice: '♥' in 'ABC♥' ... */

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)
8.3.60.0060.00916.61
8.3.50.0120.00722.83
8.3.40.0140.00318.42
8.3.30.0030.01419.00
8.3.20.0070.00020.33
8.3.10.0050.00323.56
8.3.00.0000.00817.46
8.2.180.0150.00616.75
8.2.170.0140.00322.96
8.2.160.0070.00720.43
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0130.00626.16
8.2.120.0040.00420.83
8.2.110.0030.00622.25
8.2.100.0000.01217.59
8.2.90.0050.00219.17
8.2.80.0040.00417.97
8.2.70.0000.00817.38
8.2.60.0000.00817.93
8.2.50.0050.00318.07
8.2.40.0000.00718.03
8.2.30.0000.00717.95
8.2.20.0050.00317.49
8.2.10.0000.00718.11
8.2.00.0030.00717.55
8.1.280.0100.00725.92
8.1.270.0080.00023.77
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00523.74
8.1.230.0040.00718.93
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00417.11
8.1.180.0050.00318.10
8.1.170.0070.00718.11
8.1.160.0000.00721.86
8.1.150.0070.00018.69
8.1.140.0000.00717.38
8.1.130.0000.00817.86
8.1.120.0000.00817.28
8.1.110.0000.00717.42
8.1.100.0030.00517.39
8.1.90.0000.00717.38
8.1.80.0030.00317.31
8.1.70.0070.00017.37
8.1.60.0030.00517.56
8.1.50.0060.00317.35
8.1.40.0000.00817.34
8.1.30.0030.00617.49
8.1.20.0040.00417.58
8.1.10.0070.00017.40
8.1.00.0030.00517.41
8.0.300.0040.00418.77
8.0.290.0000.00816.58
8.0.280.0040.00418.38
8.0.270.0030.00317.12
8.0.260.0060.00017.10
8.0.250.0030.00316.90
8.0.240.0070.00016.90
8.0.230.0030.00316.83
8.0.220.0030.00416.78
8.0.210.0030.00316.84
8.0.200.0030.00316.92
8.0.190.0000.00716.92
8.0.180.0000.00716.80
8.0.170.0000.00716.84
8.0.160.0040.00316.83
8.0.150.0030.00716.71
8.0.140.0080.00016.77
8.0.130.0000.00513.28
8.0.120.0030.00516.82
8.0.110.0040.00416.81
8.0.100.0070.00016.72
8.0.90.0000.00816.65
8.0.80.0090.00616.79
8.0.70.0000.00716.84
8.0.60.0040.00416.66
8.0.50.0040.00416.69
8.0.30.0130.01016.99
8.0.20.0080.01117.40
8.0.10.0000.00716.89
8.0.00.0160.00416.64
7.4.330.0000.00515.09
7.4.320.0060.00016.48
7.4.300.0000.00616.34
7.4.290.0070.00016.45
7.4.280.0000.00716.54
7.4.270.0040.00416.57
7.4.260.0100.00016.43
7.4.250.0050.00216.31
7.4.240.0020.00516.49
7.4.230.0000.00716.59
7.4.220.0100.01416.51
7.4.210.0000.01416.45
7.4.200.0070.00016.43
7.4.160.0040.01216.52
7.4.150.0210.00417.40
7.4.140.0100.00817.86
7.4.130.0070.00916.52
7.4.120.0140.00416.51
7.4.110.0040.01916.50
7.4.100.0120.00816.30
7.4.90.0120.00616.40
7.4.80.0070.01719.39
7.4.70.0070.01016.54
7.4.60.0110.00516.51
7.4.50.0030.00516.54
7.4.40.0140.00616.20
7.4.30.0060.00916.30
7.4.00.0040.00714.96
7.3.330.0030.00313.13
7.3.320.0030.00312.97
7.3.310.0070.00016.15
7.3.300.0030.00316.13
7.3.290.0120.00616.30
7.3.280.0120.00916.13
7.3.270.0180.00617.40
7.3.260.0060.01216.22
7.3.250.0060.01116.18
7.3.240.0100.00716.24
7.3.230.0060.01616.39
7.3.210.0140.00316.12
7.3.200.0120.00619.39
7.3.190.0190.00316.06
7.3.180.0070.00716.23
7.3.170.0120.00316.27
7.3.160.0090.00616.38
7.2.330.0120.00616.42
7.2.320.0140.00616.59
7.2.310.0120.01916.36
7.2.300.0140.00316.51
7.2.290.0090.01216.55
7.2.00.0080.00819.20
7.1.100.0110.00018.13
7.1.70.0060.00917.14
7.1.60.0100.01419.40
7.1.50.0090.01516.65
7.1.00.0030.07722.34
7.0.200.0030.00714.86
7.0.140.0100.07022.13
7.0.60.0170.07319.93
7.0.50.0000.06717.72
7.0.40.0030.06320.04
7.0.30.0670.05720.25
7.0.20.0100.04720.09
7.0.10.0070.05020.16
7.0.00.0100.08720.24
5.6.210.0100.06720.50
5.6.200.0030.04318.19
5.6.190.0130.08720.55
5.6.180.0200.04720.48
5.6.170.0200.08020.46
5.6.160.0070.05320.54
5.6.150.0100.03718.23
5.6.140.0070.03718.15
5.6.130.0100.07718.18
5.6.120.0030.04320.89
5.6.110.0170.07320.96
5.6.100.0130.08321.13
5.6.90.0100.04321.02
5.6.80.0030.08320.38
5.5.350.0030.07720.33
5.5.340.0030.05317.97
5.5.330.0030.04720.27
5.5.320.0100.04020.42
5.5.310.0270.05020.23
5.5.300.0070.08317.95
5.5.290.0030.04017.95
5.5.280.0030.06320.84
5.5.270.0130.06720.84
5.5.260.0070.04320.88
5.5.250.0070.07020.68
5.5.240.0170.06020.33
5.4.450.0200.05019.46
5.4.440.0400.03719.57
5.4.430.0130.04019.47
5.4.420.0300.04319.40
5.4.410.0270.04719.29
5.4.400.0570.03319.19
5.4.390.0870.03319.22
5.4.380.0900.05718.60
5.4.370.0630.06018.61
5.4.360.1070.07018.68
5.4.350.0730.06718.67
5.4.340.0570.05018.73
5.4.320.0090.03312.49
5.4.310.0040.04512.49
5.4.300.0040.03812.50
5.4.290.0040.03812.49
5.4.280.0060.03512.39
5.4.270.0020.04012.39
5.4.260.0070.03612.39
5.4.250.0060.03712.39
5.4.240.0090.03312.39
5.4.230.0080.03512.38
5.4.220.0050.03712.39
5.4.210.0060.03412.39
5.4.200.0050.03712.38
5.4.190.0050.03712.38
5.4.180.0060.03512.38
5.4.170.0110.03112.39
5.4.160.0060.03512.38
5.4.150.0080.03212.38
5.4.140.0110.03312.06
5.4.130.0060.03512.05
5.4.120.0030.03812.01
5.4.110.0050.03612.01
5.4.100.0030.03812.01
5.4.90.0080.03412.01
5.4.80.0020.04112.01
5.4.70.0040.03812.00
5.4.60.0050.04112.00
5.4.50.0060.03512.00
5.4.40.0070.03611.99
5.4.30.0030.04011.99
5.4.20.0030.03811.98
5.4.10.0050.03511.99
5.4.00.0050.03611.48
5.3.290.0070.03812.80
5.3.280.0030.04112.71
5.3.270.0070.03812.73
5.3.260.0080.03712.72
5.3.250.0080.03412.72
5.3.240.0050.03812.71
5.3.230.0060.03812.71
5.3.220.0050.03812.68
5.3.210.0040.04012.68
5.3.200.0060.03812.68
5.3.190.0070.03712.68
5.3.180.0040.03912.67
5.3.170.0040.03812.66
5.3.160.0050.03712.68
5.3.150.0060.03612.67
5.3.140.0030.04012.66
5.3.130.0050.03912.66
5.3.120.0040.04212.66
5.3.110.0080.03912.66
5.3.100.0050.03812.11
5.3.90.0080.03412.09
5.3.80.0050.03712.09
5.3.70.0050.03712.09
5.3.60.0070.03512.07
5.3.50.0050.03612.02
5.3.40.0070.03512.02
5.3.30.0090.03311.98
5.3.20.0070.03411.75
5.3.10.0070.03211.72
5.3.00.0060.03511.71
5.2.170.0040.0309.21
5.2.160.0050.0289.21
5.2.150.0050.0319.21
5.2.140.0040.0319.21
5.2.130.0010.0329.17
5.2.120.0030.0299.17
5.2.110.0050.0299.18
5.2.100.0080.0259.17
5.2.90.0030.0309.17
5.2.80.0040.0319.16
5.2.70.0050.0309.16
5.2.60.0050.0309.12
5.2.50.0030.0329.09
5.2.40.0080.0259.07
5.2.30.0040.0309.04
5.2.20.0040.0299.03
5.2.10.0030.0298.93
5.2.00.0020.0318.80
5.1.60.0020.0258.08
5.1.50.0040.0258.08
5.1.40.0030.0258.06
5.1.30.0040.0268.41
5.1.20.0030.0298.43
5.1.10.0020.0298.16
5.1.00.0050.0248.15
5.0.50.0030.0216.63
5.0.40.0020.0206.49
5.0.30.0050.0296.31
5.0.20.0010.0236.27
5.0.10.0030.0206.25
5.0.00.0020.0316.24
4.4.90.0030.0154.78
4.4.80.0040.0144.76
4.4.70.0020.0154.76
4.4.60.0030.0154.76
4.4.50.0030.0174.77
4.4.40.0020.0314.71
4.4.30.0010.0194.76
4.4.20.0010.0214.85
4.4.10.0050.0184.85
4.4.00.0050.0244.76
4.3.110.0040.0154.67
4.3.100.0030.0154.66
4.3.90.0010.0164.64
4.3.80.0010.0264.59
4.3.70.0020.0154.63
4.3.60.0030.0144.62
4.3.50.0020.0164.63
4.3.40.0030.0244.54
4.3.30.0020.0163.30
4.3.20.0020.0163.28
4.3.10.0010.0163.24
4.3.00.0170.01315.98

preferences:
41.83 ms | 401 KiB | 5 Q