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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(); $names = array_keys($constants); var_dump($names); /* for ($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)
8.3.60.0070.00716.25
8.3.50.0090.01022.88
8.3.40.0110.00718.43
8.3.30.0160.00319.01
8.3.20.0040.00419.98
8.3.10.0000.00823.69
8.3.00.0080.00017.50
8.2.180.0130.00316.63
8.2.170.0140.00022.96
8.2.160.0100.01020.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00626.16
8.2.120.0040.00421.08
8.2.110.0090.00021.19
8.2.100.0110.00017.59
8.2.90.0060.00319.05
8.2.80.0060.00317.97
8.2.70.0050.00317.50
8.2.60.0050.00317.91
8.2.50.0040.00418.07
8.2.40.0070.00318.16
8.2.30.0040.00417.91
8.2.20.0080.00017.50
8.2.10.0040.00418.06
8.2.00.0000.00717.59
8.1.280.0100.00725.92
8.1.270.0000.01123.83
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00319.46
8.1.230.0000.01118.91
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0040.00417.23
8.1.190.0030.00517.10
8.1.180.0080.00018.10
8.1.170.0070.00418.57
8.1.160.0000.00721.89
8.1.150.0040.00418.88
8.1.140.0070.00017.38
8.1.130.0080.00017.84
8.1.120.0000.00717.43
8.1.110.0080.00017.36
8.1.100.0000.00717.41
8.1.90.0050.00217.32
8.1.80.0040.00417.32
8.1.70.0030.00317.29
8.1.60.0050.00317.53
8.1.50.0040.00417.45
8.1.40.0000.00817.38
8.1.30.0040.00417.45
8.1.20.0040.00417.49
8.1.10.0040.00417.46
8.1.00.0040.00417.31
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0070.00018.29
8.0.270.0080.00017.20
8.0.260.0030.00317.20
8.0.250.0000.00716.89
8.0.240.0050.00316.96
8.0.230.0040.00416.80
8.0.220.0030.00516.75
8.0.210.0030.00316.71
8.0.200.0040.00416.88
8.0.190.0040.00316.84
8.0.180.0080.00016.84
8.0.170.0040.00416.82
8.0.160.0000.00816.81
8.0.150.0060.00316.78
8.0.140.0080.00416.83
8.0.130.0030.00313.31
8.0.120.0050.00316.70
8.0.110.0040.00416.72
8.0.100.0050.00216.85
8.0.90.0070.00016.86
8.0.80.0090.00616.77
8.0.70.0000.00816.89
8.0.60.0000.00816.66
8.0.50.0040.00416.79
8.0.30.0100.00916.94
8.0.20.0090.01217.40
8.0.10.0040.00416.86
8.0.00.0150.00416.65
7.4.330.0000.00515.13
7.4.320.0000.00616.44
7.4.300.0060.00016.51
7.4.290.0070.00016.59
7.4.280.0060.00316.58
7.4.270.0000.00716.55
7.4.260.0020.00516.45
7.4.250.0030.00516.30
7.4.240.0000.00716.45
7.4.230.0070.00016.47
7.4.220.0110.00816.59
7.4.210.0030.01216.37
7.4.200.0060.00316.36
7.4.160.0090.00616.38
7.4.150.0150.00417.40
7.4.140.0080.01217.86
7.4.130.0070.01016.37
7.4.120.0130.00416.44
7.4.110.0100.00716.56
7.4.100.0100.01116.45
7.4.90.0100.00716.46
7.4.80.0060.01219.39
7.4.70.0070.01016.52
7.4.60.0110.00816.32
7.4.50.0000.00516.36
7.4.40.0090.00616.39
7.4.30.0030.01216.56
7.4.00.0030.01015.04
7.3.330.0030.00313.18
7.3.320.0030.00313.03
7.3.310.0070.00016.13
7.3.300.0030.00316.13
7.3.290.0070.00716.16
7.3.280.0070.00916.12
7.3.270.0110.00717.40
7.3.260.0140.00316.16
7.3.250.0120.00816.40
7.3.240.0120.00816.13
7.3.230.0060.01616.45
7.3.210.0100.00716.36
7.3.200.0090.00919.39
7.3.190.0090.01216.26
7.3.180.0040.01116.27
7.3.170.0120.00316.27
7.3.160.0050.01116.46
7.2.330.0060.01316.69
7.2.320.0140.00616.55
7.2.310.0060.01016.61
7.2.300.0040.01316.63
7.2.290.0120.00316.22
7.2.60.0070.00716.54
7.2.00.0050.00319.22
7.1.200.0030.01215.59
7.1.100.0040.00718.32
7.1.70.0040.00417.09
7.1.60.0110.01419.40
7.1.50.0070.01516.86
7.1.00.0030.07722.39
7.0.200.0080.00814.54
7.0.140.0070.07022.00
7.0.60.0070.06320.02
7.0.50.0000.04317.85
7.0.40.0070.04320.29
7.0.30.0200.05320.08
7.0.20.0170.07720.24
7.0.10.0070.08320.10
7.0.00.0030.05720.09
5.6.280.0000.07321.04
5.6.210.0130.06320.45
5.6.200.0100.07718.28
5.6.190.0070.04020.55
5.6.180.0430.03720.77
5.6.170.0230.03720.54
5.6.160.0030.04320.44
5.6.150.0000.04318.27
5.6.140.0170.07318.15
5.6.130.0070.04018.18
5.6.120.0070.04020.95
5.6.110.0100.08321.01
5.6.100.0070.04720.96
5.6.90.0030.08021.12
5.6.80.0130.06020.38
5.5.350.0000.05320.49
5.5.340.0100.04718.00
5.5.330.0030.04020.41
5.5.320.0070.06720.20
5.5.310.0170.04720.34
5.5.300.0030.04017.98
5.5.290.0100.03318.03
5.5.280.0100.07720.96
5.5.270.0070.06020.89
5.5.260.0270.07720.79
5.5.250.0030.06020.61
5.5.240.0130.04720.04
5.4.450.0400.04019.20
5.4.440.0530.04319.27
5.4.430.0270.04019.30
5.4.420.0470.04719.33
5.4.410.0300.04319.17
5.4.400.0270.03719.31
5.4.390.0370.03318.84
5.4.380.1030.05718.74
5.4.370.0430.06318.63
5.4.360.0900.05018.75
5.4.350.0700.06018.79
5.4.340.0700.05718.59
5.4.320.0080.03512.50
5.4.310.0060.03712.50
5.4.300.0050.04112.50
5.4.290.0110.04812.50
5.4.280.0080.04612.39
5.4.270.0120.03012.39
5.4.260.0040.03912.39
5.4.250.0040.03912.39
5.4.240.0040.03712.39
5.4.230.0040.03912.38
5.4.220.0030.03812.38
5.4.210.0090.03812.38
5.4.200.0070.03712.39
5.4.190.0020.04012.38
5.4.180.0040.03812.38
5.4.170.0060.03612.39
5.4.160.0070.04112.39
5.4.150.0040.03812.38
5.4.140.0050.03912.07
5.4.130.0050.04112.05
5.4.120.0060.03512.01
5.4.110.0040.03712.01
5.4.100.0060.03412.00
5.4.90.0040.03912.00
5.4.80.0040.03812.01
5.4.70.0090.03312.01
5.4.60.0060.03712.00
5.4.50.0030.03912.00
5.4.40.0060.03712.00
5.4.30.0070.03911.99
5.4.20.0050.03711.99
5.4.10.0070.03411.99
5.4.00.0050.03611.48
5.3.290.0040.04112.80
5.3.280.0090.03412.71
5.3.270.0080.03612.73
5.3.260.0080.03712.72
5.3.250.0070.03612.72
5.3.240.0100.03612.72
5.3.230.0040.04112.71
5.3.220.0030.03912.68
5.3.210.0090.03512.68
5.3.200.0080.03312.68
5.3.190.0080.03612.68
5.3.180.0060.03612.68
5.3.170.0070.03612.67
5.3.160.0060.03712.67
5.3.150.0070.03612.67
5.3.140.0050.03812.66
5.3.130.0110.03412.66
5.3.120.0050.03912.66
5.3.110.0040.04212.66
5.3.100.0050.03712.12
5.3.90.0100.03912.09
5.3.80.0050.03712.08
5.3.70.0070.03912.08
5.3.60.0020.03912.07
5.3.50.0050.03712.02
5.3.40.0070.03612.02
5.3.30.0040.03711.98
5.3.20.0060.03511.76
5.3.10.0060.03511.73
5.3.00.0090.03311.71
5.2.170.0050.0299.21
5.2.160.0040.0299.21
5.2.150.0060.0289.21
5.2.140.0050.0309.21
5.2.130.0030.0309.17
5.2.120.0080.0379.17
5.2.110.0080.0269.18
5.2.100.0050.0309.17
5.2.90.0060.0409.17
5.2.80.0040.0399.16
5.2.70.0080.0349.17
5.2.60.0050.0319.12
5.2.50.0080.0399.09
5.2.40.0040.0309.06
5.2.30.0020.0329.04
5.2.20.0020.0319.03
5.2.10.0040.0288.93
5.2.00.0030.0308.80
5.1.60.0060.0228.08
5.1.50.0040.0248.07
5.1.40.0020.0278.06
5.1.30.0070.0278.41
5.1.20.0070.0238.43
5.1.10.0040.0268.15
5.1.00.0030.0278.16
5.0.50.0030.0216.63
5.0.40.0050.0186.49
5.0.30.0030.0326.31
5.0.20.0030.0206.27
5.0.10.0010.0226.25
5.0.00.0040.0306.24
4.4.90.0030.0154.78
4.4.80.0040.0144.75
4.4.70.0020.0164.76
4.4.60.0010.0174.75
4.4.50.0030.0154.77
4.4.40.0030.0244.71
4.4.30.0000.0184.76
4.4.20.0020.0164.84
4.4.10.0020.0164.85
4.4.00.0030.0244.76
4.3.110.0050.0144.67
4.3.100.0030.0144.67
4.3.90.0030.0144.63
4.3.80.0030.0244.58
4.3.70.0020.0184.63
4.3.60.0040.0144.63
4.3.50.0030.0154.63
4.3.40.0010.0264.54
4.3.30.0020.0173.30
4.3.20.0010.0183.28
4.3.10.0010.0163.23
4.3.00.0030.01715.98

preferences:
51.16 ms | 401 KiB | 5 Q