3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '/** @some thing */'; $numChars = strlen($string); $char = ($numChars - strlen(ltrim($string, '/*'))); $openTag = substr($string, 0, $char); $string = ltrim($string, '/*'); var_dump($numChars, $char, $openTag, $string);

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)
8.3.60.0110.00416.38
8.3.50.0040.01117.87
8.3.40.0110.00718.71
8.3.30.0070.00718.59
8.3.20.0000.00721.60
8.3.10.0040.00423.57
8.3.00.0040.00417.84
8.2.180.0120.00925.92
8.2.170.0130.00718.91
8.2.160.0070.01122.96
8.2.150.0000.00825.66
8.2.140.0070.00024.66
8.2.130.0050.00220.35
8.2.120.0040.00426.35
8.2.110.0060.00321.00
8.2.100.0090.00319.45
8.2.90.0000.00920.59
8.2.80.0040.00420.50
8.2.70.0090.00017.50
8.2.60.0000.00817.90
8.2.50.0040.00418.10
8.2.40.0000.00920.59
8.2.30.0000.00820.85
8.2.20.0040.00417.91
8.2.10.0050.00218.05
8.2.00.0050.00217.97
8.1.280.0100.01025.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0050.00522.23
8.1.230.0070.00722.82
8.1.220.0080.00017.74
8.1.210.0000.00818.96
8.1.200.0050.00517.13
8.1.190.0090.00017.10
8.1.180.0040.00418.10
8.1.170.0040.00418.49
8.1.160.0000.00818.83
8.1.150.0020.00520.25
8.1.140.0040.00419.37
8.1.130.0000.00818.82
8.1.120.0070.00017.41
8.1.110.0050.00217.34
8.1.100.0050.00317.41
8.1.90.0040.00417.38
8.1.80.0030.00517.37
8.1.70.0000.00617.30
8.1.60.0030.00617.39
8.1.50.0000.00717.43
8.1.40.0000.00817.47
8.1.30.0000.00817.57
8.1.20.0000.00717.55
8.1.10.0050.00317.52
8.1.00.0000.00817.41
8.0.300.0030.00619.85
8.0.290.0060.00316.63
8.0.280.0000.00718.41
8.0.270.0030.00616.65
8.0.260.0030.00316.63
8.0.250.0000.00716.85
8.0.240.0000.00716.79
8.0.230.0000.00716.76
8.0.220.0040.00416.82
8.0.210.0040.00416.69
8.0.200.0030.00616.85
8.0.190.0040.00416.77
8.0.180.0040.00416.86
8.0.170.0070.00016.74
8.0.160.0050.00316.76
8.0.150.0040.00416.65
8.0.140.0070.00016.81
8.0.130.0000.00513.25
8.0.120.0060.00316.68
8.0.110.0070.00016.82
8.0.100.0000.00716.68
8.0.90.0040.00416.73
8.0.80.0090.00916.77
8.0.70.0070.00016.64
8.0.60.0050.00316.61
8.0.50.0070.00016.68
8.0.30.0090.00817.05
8.0.20.0100.01017.40
8.0.10.0070.00016.75
8.0.00.0070.01116.70
7.4.330.0060.00015.55
7.4.320.0060.00016.49
7.4.300.0060.00016.44
7.4.290.0100.00016.48
7.4.280.0060.00316.45
7.4.270.0000.00716.45
7.4.260.0030.00316.38
7.4.250.0070.00016.46
7.4.240.0000.00716.53
7.4.230.0030.00316.40
7.4.220.0130.01316.55
7.4.210.0080.00816.35
7.4.200.0000.00716.59
7.4.160.0080.00816.55
7.4.150.0070.01017.40
7.4.140.0140.00517.86
7.4.130.0060.02016.31
7.4.120.0090.00916.54
7.4.110.0110.00716.41
7.4.100.0090.00916.48
7.4.90.0100.00716.38
7.4.80.0000.01619.39
7.4.70.0000.02116.50
7.4.60.0090.00616.34
7.4.50.0070.00716.16
7.4.40.0090.01016.45
7.4.30.0030.01316.58
7.4.00.0080.00814.79
7.3.330.0050.00013.03
7.3.320.0060.00013.12
7.3.310.0030.00316.22
7.3.300.0000.00716.16
7.3.290.0090.00716.24
7.3.280.0060.01116.25
7.3.270.0160.00717.40
7.3.260.0120.00516.53
7.3.250.0110.00716.42
7.3.240.0110.01116.39
7.3.230.0150.00316.47
7.3.210.0060.01216.42
7.3.200.0100.00716.57
7.3.190.0100.01316.31
7.3.180.0040.01716.30
7.3.170.0060.01416.29
7.3.160.0030.01316.30
7.3.120.0070.01014.77
7.3.110.0110.00714.82
7.3.100.0030.00914.80
7.3.90.0090.00314.68
7.3.80.0060.00614.91
7.3.70.0090.00314.66
7.3.60.0000.01614.78
7.3.50.0080.00514.65
7.3.40.0080.00414.78
7.3.30.0070.00714.43
7.3.20.0080.00416.80
7.3.10.0040.00716.63
7.3.00.0000.01716.56
7.2.330.0110.00716.39
7.2.320.0110.00716.62
7.2.310.0080.00816.61
7.2.300.0080.00816.47
7.2.290.0150.00616.67
7.2.250.0100.00715.06
7.2.240.0160.00315.11
7.2.230.0090.00914.73
7.2.220.0040.00814.78
7.2.210.0000.01614.99
7.2.200.0000.01514.96
7.2.190.0030.01214.72
7.2.180.0070.00715.07
7.2.170.0070.00714.82
7.2.60.0090.00616.80
7.2.50.0070.00716.68
7.1.330.0100.00315.77
7.1.320.0060.00915.81
7.1.310.0030.01015.85
7.1.300.0030.01415.64
7.1.290.0040.00815.91
7.1.280.0070.00715.84
7.1.270.0110.00415.54
7.1.260.0070.01015.40
7.1.200.0050.00516.00
7.1.70.0000.00716.90
7.1.60.1930.01732.92
7.1.50.1900.01332.91
7.1.40.1930.01732.56
7.1.30.2100.01032.77
7.1.20.1300.02032.54
7.1.10.1330.01314.63
7.1.00.1670.01714.96
7.0.200.2930.01015.02
7.0.190.3230.01714.57
7.0.180.2370.01314.28
7.0.170.2130.01314.59
7.0.160.1900.00714.48
7.0.150.1970.00714.54
7.0.140.1670.01314.35
7.0.130.1600.01714.58
7.0.120.1170.01014.68
7.0.110.0930.01014.70
7.0.100.0870.01314.41
7.0.90.0970.01014.37
7.0.80.1470.01314.79
7.0.70.1000.01014.28
7.0.60.1370.02014.37
7.0.50.1000.01014.59
7.0.40.1030.01014.56
7.0.30.1000.01314.38
7.0.20.0900.00714.48
7.0.10.0970.01314.43
7.0.00.0800.01314.73

preferences:
50.99 ms | 400 KiB | 5 Q