3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test{ const AB♥ = "alphabet"; } $rc = new ReflectionClass("Test"); $t = array_keys( $rc->getConstants())[0]; if ( mb_substr($t,-1,1,"utf-8") == "\xe2\x99\xa5" ) { var_dump($t,mb_substr($t,-1,1,"utf-8"), "\xe2\x99\xa5"); echo "\n\xa5"; echo "&hearts;"; echo "&#x2665"; echo "&#9829"; echo '&#' . 0x2665; echo '&#' . 9829; echo "heart: ",json_decode('"' . "\u2665" . '"'); //trigger_error("heart symbol is disallowed",E_USER_ERROR); }

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)
8.3.60.0130.00618.43
8.3.50.0160.00321.21
8.3.40.0040.01118.85
8.3.30.0140.00018.72
8.3.20.0080.00020.35
8.3.10.0000.00721.73
8.3.00.0090.00019.66
8.2.180.0040.01118.55
8.2.170.0110.00322.96
8.2.160.0070.00720.43
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00417.50
8.2.110.0100.00719.39
8.2.100.0130.00017.63
8.2.90.0000.00819.23
8.2.80.0030.00517.97
8.2.70.0000.00917.63
8.2.60.0000.00818.03
8.2.50.0030.00618.07
8.2.40.0040.00419.16
8.2.30.0040.00420.57
8.2.20.0030.00617.73
8.2.10.0040.00417.96
8.2.00.0040.00418.00
8.1.280.0110.00725.92
8.1.270.0110.00022.15
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0060.00323.84
8.1.230.0080.00419.26
8.1.220.0040.00417.78
8.1.210.0030.00518.77
8.1.200.0030.00617.25
8.1.190.0100.00017.23
8.1.180.0000.00718.10
8.1.170.0060.00318.63
8.1.160.0000.00721.96
8.1.150.0000.00718.88
8.1.140.0060.00317.48
8.1.130.0000.00817.70
8.1.120.0040.00317.47
8.1.110.0020.00517.53
8.1.100.0040.00417.47
8.1.90.0040.00417.33
8.1.80.0040.00417.45
8.1.70.0040.00417.45
8.1.60.0070.00017.59
8.1.50.0050.00317.61
8.1.40.0120.00017.55
8.1.30.0060.00317.61
8.1.20.0000.00817.57
8.1.10.0000.00817.68
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00818.34
8.0.270.0000.00717.31
8.0.260.0030.00317.30
8.0.250.0070.00017.02
8.0.240.0000.00817.00
8.0.230.0070.00016.92
8.0.220.0040.00416.90
8.0.210.0000.00716.87
8.0.200.0030.00316.98
8.0.190.0000.00816.86
8.0.180.0050.00316.89
8.0.170.0040.00416.91
8.0.160.0080.00016.86
8.0.150.0040.00416.77
8.0.140.0000.00716.80
8.0.130.0030.00313.27
8.0.120.0050.00316.81
8.0.110.0040.00416.99
8.0.100.0030.00417.00
8.0.90.0070.00017.01
8.0.80.0120.00816.88
8.0.70.0000.00717.00
8.0.60.0000.00717.06
8.0.50.0000.00716.81
8.0.30.0090.00517.25
8.0.20.0070.01517.40
8.0.10.0040.00417.03
8.0.00.0110.00816.73
7.4.330.0000.00515.09
7.4.320.0000.00616.64
7.4.300.0090.00016.50
7.4.290.0040.00416.45
7.4.280.0020.00716.41
7.4.270.0070.00016.50
7.4.260.0000.00716.63
7.4.250.0040.00416.45
7.4.240.0030.00416.57
7.4.230.0000.00716.63
7.4.220.0090.01316.70
7.4.210.0070.01116.63
7.4.200.0070.00016.59
7.4.160.0120.00316.57
7.4.150.0110.00817.40
7.4.140.0080.01217.86
7.4.130.0050.01216.56
7.4.120.0080.01216.64
7.4.110.0070.01116.70
7.4.100.0120.00616.69
7.4.90.0090.00916.48
7.4.80.0110.01219.39
7.4.70.0030.01416.58
7.4.60.0100.00716.49
7.4.50.0080.00016.61
7.4.40.0040.01716.56
7.4.30.0120.00316.52
7.4.00.0060.01214.95
7.3.330.0050.00013.31
7.3.320.0060.00013.29
7.3.310.0070.00016.19
7.3.300.0030.00316.34
7.3.290.0060.01016.33
7.3.280.0080.00816.25
7.3.270.0110.00917.40
7.3.260.0040.02116.55
7.3.250.0070.01216.48
7.3.240.0030.01316.55
7.3.230.0040.01316.39
7.3.210.0040.01316.30
7.3.200.0080.00816.47
7.3.190.0090.00616.24
7.3.180.0100.00716.20
7.3.170.0040.01516.53
7.3.160.0030.01316.55
7.3.120.0030.01414.83
7.3.110.0100.00714.95
7.3.100.0030.01014.68
7.3.90.0050.00514.54
7.3.80.0030.00514.80
7.3.70.0060.00614.86
7.3.60.0000.01314.83
7.3.50.0060.00614.61
7.3.40.0090.00614.71
7.3.30.0040.01114.58
7.3.20.0090.00616.34
7.3.10.0050.00616.50
7.3.00.0090.00716.66
7.2.330.0130.00316.56
7.2.320.0080.00816.47
7.2.310.0190.00416.61
7.2.300.0060.01116.45
7.2.290.0120.00916.50
7.2.240.0070.00715.25
7.2.230.0030.01314.80
7.2.220.0030.01014.81
7.2.210.0050.00514.85
7.2.200.0030.00614.73
7.2.190.0100.00615.01
7.2.180.0030.01014.84
7.2.170.0030.01415.20
7.2.160.0000.00915.12
7.2.150.0040.01117.15
7.2.140.0030.01217.16
7.2.130.0070.01016.76
7.2.120.0060.00916.80
7.2.110.0050.00816.79
7.2.100.0090.00716.48
7.2.90.0050.01216.80
7.2.80.0050.01316.61
7.2.70.0030.01216.82
7.2.60.0080.00716.72
7.2.50.0040.00916.85
7.2.40.0050.00816.83
7.2.30.0000.01616.90
7.2.20.0130.00516.86
7.2.10.0060.00816.84
7.2.00.0070.00717.75
7.1.330.0040.00815.68
7.1.320.0000.01115.81
7.1.310.0000.01215.88
7.1.300.0100.00715.93
7.1.290.0060.00615.84
7.1.280.0040.00715.84
7.1.270.0100.00315.83
7.1.260.0030.01015.84
7.1.250.0070.00715.41
7.1.200.0000.01415.70
7.1.100.0110.00418.06
7.1.70.0030.00617.02
7.1.60.0100.00017.04
7.1.50.0030.01716.77
7.1.00.0100.07022.48
7.0.200.0040.01416.77
7.0.60.0030.04320.04
7.0.50.0070.03717.98
7.0.40.0070.04020.51
7.0.30.0230.08720.21
7.0.20.0400.04320.33
7.0.10.0070.05020.24
7.0.00.0070.05020.05
5.6.280.0000.07720.86
5.6.210.0070.08320.44
5.6.200.0070.07718.26
5.6.190.0100.08320.39
5.6.180.0100.07720.58
5.6.170.0200.04020.71
5.6.160.0030.08720.51
5.6.150.0000.04318.18
5.6.140.0030.06718.29
5.6.130.0100.03318.27
5.6.120.0100.03721.05
5.6.110.0100.08021.00
5.6.100.0070.08720.98
5.6.90.0100.06021.09
5.6.80.0070.08320.38
5.5.350.0300.07720.32
5.5.340.0000.07018.04
5.5.330.0130.08020.29
5.5.320.0100.06320.37
5.5.310.0170.05720.38
5.5.300.0130.07317.95
5.5.290.0070.06318.07
5.5.280.0070.04020.98
5.5.270.0100.07720.85
5.5.260.0100.05320.87
5.5.250.0270.07020.62
5.5.240.0030.04020.14
5.4.450.0800.07719.58
5.4.440.0670.07719.39
5.4.430.0630.05319.30
5.4.420.0630.06019.60
5.4.410.0700.05019.56
5.4.400.0700.04719.06
5.4.390.0700.05719.12
5.4.380.0600.07019.28
5.4.370.0830.07719.15
5.4.360.0830.06019.03
5.4.350.0730.06019.28
5.4.340.0730.06719.11
5.4.320.0830.05319.14
5.4.310.0930.04719.16
5.4.300.0830.05019.25
5.4.290.0930.05319.25
5.4.280.0900.05019.09
5.4.270.0800.05719.29
5.4.260.0800.06019.16
5.4.250.1030.05318.97
5.4.240.0730.06018.83
5.4.230.0700.05019.05
5.4.220.0700.05319.24
5.4.210.0570.06019.21
5.4.200.0730.05319.14
5.4.190.0600.06319.13
5.4.180.0770.05719.15
5.4.170.0970.05719.14
5.4.160.0770.05019.26
5.4.150.0630.06019.23
5.4.140.0800.06316.52
5.4.130.0600.06716.49
5.4.120.1070.05016.39
5.4.110.0870.04716.25
5.4.100.0670.06316.63
5.4.90.0670.05716.28
5.4.80.0700.04716.46
5.4.70.0300.06716.49
5.4.60.0230.05016.26
5.4.50.0300.04316.43
5.4.40.0400.06316.43
5.4.30.0200.04016.23
5.4.20.0230.04316.57
5.4.10.0270.02716.25

preferences:
55.44 ms | 401 KiB | 5 Q