3v4l.org

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

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)
8.3.60.0110.01116.75
8.3.50.0100.00622.81
8.3.40.0080.00818.88
8.3.30.0070.00719.05
8.3.20.0000.00720.25
8.3.10.0050.00323.51
8.3.00.0060.00319.38
8.2.180.0090.00616.75
8.2.170.0160.00022.96
8.2.160.0080.00620.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00020.98
8.2.110.0000.00922.24
8.2.100.0000.01218.03
8.2.90.0080.00018.03
8.2.80.0110.00017.97
8.2.70.0060.00317.63
8.2.60.0030.00617.93
8.2.50.0000.00918.07
8.2.40.0000.00817.97
8.2.30.0000.00818.12
8.2.20.0040.00417.79
8.2.10.0030.00518.11
8.2.00.0040.00417.73
8.1.280.0030.01225.92
8.1.270.0030.01623.81
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0170.00022.50
8.1.230.0070.00321.05
8.1.220.0000.00917.79
8.1.210.0050.00318.82
8.1.200.0050.00517.23
8.1.190.0030.00617.13
8.1.180.0000.00818.10
8.1.170.0030.00618.72
8.1.160.0000.00722.00
8.1.150.0050.00218.88
8.1.140.0070.00017.45
8.1.130.0000.00717.95
8.1.120.0040.00417.43
8.1.110.0000.00717.50
8.1.100.0040.00417.43
8.1.90.0000.00717.48
8.1.80.0020.00517.46
8.1.70.0070.00017.31
8.1.60.0000.00917.61
8.1.50.0040.00417.55
8.1.40.0030.00617.60
8.1.30.0000.00817.57
8.1.20.0000.00817.77
8.1.10.0030.00617.62
8.1.00.0040.00417.54
8.0.300.0080.00020.03
8.0.290.0070.00016.88
8.0.280.0030.00518.48
8.0.270.0000.00717.42
8.0.260.0030.00317.32
8.0.250.0000.00716.91
8.0.240.0070.00017.06
8.0.230.0040.00416.93
8.0.220.0040.00416.99
8.0.210.0000.00717.05
8.0.200.0070.00017.07
8.0.190.0030.00317.04
8.0.180.0080.00017.04
8.0.170.0000.00817.09
8.0.160.0020.00516.95
8.0.150.0050.00517.02
8.0.140.0030.00517.01
8.0.130.0070.00013.44
8.0.120.0040.00416.97
8.0.110.0040.00416.86
8.0.100.0050.00217.12
8.0.90.0030.00316.98
8.0.80.0030.01616.91
8.0.70.0040.00416.89
8.0.60.0000.00817.06
8.0.50.0080.00016.89
8.0.30.0150.00716.97
8.0.20.0090.01017.40
8.0.10.0030.00517.12
8.0.00.0080.01216.90
7.4.330.0060.00015.15
7.4.320.0030.00316.50
7.4.300.0030.00316.63
7.4.290.0000.00716.43
7.4.280.0000.00816.34
7.4.270.0030.00316.48
7.4.260.0050.00316.47
7.4.250.0040.00416.48
7.4.240.0070.00016.53
7.4.230.0040.00416.49
7.4.220.0030.01516.61
7.4.210.0100.00316.53
7.4.200.0000.00716.60
7.4.160.0060.01016.85
7.4.150.0060.01217.40
7.4.140.0150.01117.86
7.4.130.0090.00716.54
7.4.120.0090.01416.46
7.4.110.0070.01116.59
7.4.100.0100.01316.53
7.4.90.0070.01016.45
7.4.80.0120.01219.39
7.4.70.0060.00916.57
7.4.60.0070.01016.56
7.4.50.0000.00416.63
7.4.40.0150.00416.43
7.4.30.0090.00616.56
7.3.330.0000.00813.40
7.3.320.0000.00713.42
7.3.310.0000.00716.38
7.3.300.0050.00216.46
7.3.290.0030.01016.45
7.3.280.0080.00916.43
7.3.270.0000.02017.40
7.3.260.0060.01216.48
7.3.250.0090.00816.47
7.3.240.0120.00616.48
7.3.230.0060.01016.53
7.3.210.0070.01016.43
7.3.200.0130.00619.39
7.3.190.0060.01616.49
7.3.180.0030.01316.28
7.3.170.0110.01116.36
7.3.160.0100.00516.55
7.2.330.0140.00316.20
7.2.320.0070.01416.48
7.2.310.0120.00916.46
7.2.300.0100.00616.46
7.2.290.0070.01016.22
5.4.320.0500.04019.21
5.4.310.0230.03319.00
5.4.300.0170.05319.30
5.4.290.0300.03019.19
5.4.280.0270.04319.14
5.4.270.0170.04019.08
5.4.260.0230.03318.83
5.4.250.0130.04319.21
5.4.240.0170.04018.83
5.4.230.0200.03718.86
5.4.220.0230.07319.22
5.4.210.0200.04719.30
5.4.200.0170.04019.14
5.4.190.0200.04318.82
5.4.180.0270.05318.93
5.4.170.0170.04018.93
5.4.160.0170.03718.93
5.4.150.0270.03019.20
5.4.140.0230.03016.68
5.4.130.0200.05716.44
5.4.120.0170.03716.46
5.4.110.0230.03316.31
5.4.100.0300.03316.50
5.4.90.0270.03316.56
5.4.80.0170.04016.59
5.4.70.0200.03316.31
5.4.60.0200.03316.43
5.4.50.0230.03016.58
5.4.40.0270.04316.43
5.4.30.0230.03016.24
5.4.20.0400.02716.50
5.4.10.0200.03716.32
5.4.00.0200.03315.96
5.3.290.0200.06714.66
5.3.280.0200.03714.52
5.3.270.0200.03714.58
5.3.260.0230.05014.61
5.3.250.0200.04014.60
5.3.240.0270.06714.52
5.3.230.0230.04014.50
5.3.220.0270.03314.49
5.3.210.0200.03314.64
5.3.200.0270.03314.57
5.3.190.0200.03714.79
5.3.180.0200.07014.80
5.3.170.0230.07014.61
5.3.160.0270.06714.57
5.3.150.0230.07014.78
5.3.140.0170.04014.46
5.3.130.0300.06314.52
5.3.120.0300.05314.63
5.3.110.0230.07014.77
5.3.100.0230.04313.95
5.3.90.0300.06014.09
5.3.80.0200.04014.16
5.3.70.0300.05714.24
5.3.60.0270.05314.14
5.3.50.0270.07013.98
5.3.40.0300.03313.87
5.3.30.0270.03313.83
5.3.20.0300.03013.60
5.3.10.0270.05713.52
5.3.00.0300.06713.54
5.2.170.0270.05711.08
5.2.160.0270.06011.05
5.2.150.0200.04311.12
5.2.140.0170.03711.22
5.2.130.0330.03311.11
5.2.120.0200.05311.33
5.2.110.0230.02711.23
5.2.100.0170.03711.02
5.2.90.0170.03311.03
5.2.80.0170.06311.07
5.2.70.0270.05711.14
5.2.60.0200.04311.00
5.2.50.0330.05311.24
5.2.40.0200.05311.14
5.2.30.0270.03310.88
5.2.20.0270.05311.04
5.2.10.0300.03710.78
5.2.00.0270.03710.79
5.1.60.0200.0479.97
5.1.50.0200.03010.12
5.1.40.0200.05010.06
5.1.30.0230.04710.26
5.1.20.0200.02310.40
5.1.10.0200.0579.97
5.1.00.0200.02310.16
5.0.50.0200.0278.63
5.0.40.0100.0238.39
5.0.30.0100.0308.13
5.0.20.0070.0278.09
5.0.10.0130.0238.32
5.0.00.0100.0638.13
4.4.90.0100.0137.72
4.4.80.0100.0277.72
4.4.70.0130.0207.72
4.4.60.0100.0307.72
4.4.50.0070.0207.72
4.4.40.0100.0507.72
4.4.30.0130.0307.72
4.4.20.0170.0177.72
4.4.10.0070.0307.72
4.4.00.0070.0377.72
4.3.110.0100.0237.72
4.3.100.0070.0207.72
4.3.90.0100.0337.72
4.3.80.0170.0437.72
4.3.70.0130.0207.72
4.3.60.0130.0137.72
4.3.50.0030.0207.72
4.3.40.0130.0477.72
4.3.30.0030.0307.72
4.3.20.0030.0237.72
4.3.10.0030.0207.72
4.3.00.0030.0277.72

preferences:
38.29 ms | 401 KiB | 5 Q