3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = 'this is a test'; for($i = 0; $i < mb_strlen($input); $i++) { echo bin2hex($input[$i]); if($i < mb_strlen($input) - 1) { echo " "; } }

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)
8.3.60.0110.00718.43
8.3.50.0080.00618.05
8.3.40.0090.00618.53
8.3.30.0060.00918.85
8.3.20.0050.00321.89
8.3.10.0100.00018.90
8.3.00.0080.00017.59
8.2.180.0090.00616.38
8.2.170.0150.00022.96
8.2.160.0070.00721.93
8.2.150.0040.00424.18
8.2.140.0110.00024.66
8.2.130.0080.00017.91
8.2.120.0080.00026.35
8.2.110.0030.00620.44
8.2.100.0110.00017.91
8.2.90.0050.00317.88
8.2.80.0040.00418.86
8.2.70.0000.00817.63
8.2.60.0050.00317.50
8.2.50.0040.00417.63
8.2.40.0050.00219.42
8.2.30.0040.00419.18
8.2.20.0040.00418.18
8.2.10.0060.00319.06
8.2.00.0030.00518.00
8.1.280.0110.00325.92
8.1.270.0030.00619.04
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0000.00920.68
8.1.230.0070.00422.14
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0040.00417.35
8.1.190.0080.00017.11
8.1.180.0040.00418.10
8.1.170.0030.00618.47
8.1.160.0030.00518.81
8.1.150.0000.00718.83
8.1.140.0040.00418.82
8.1.130.0000.00817.39
8.1.120.0000.00717.41
8.1.110.0020.00517.45
8.1.100.0040.00417.29
8.1.90.0000.00717.37
8.1.80.0070.00017.43
8.1.70.0040.00417.37
8.1.60.0000.00817.48
8.1.50.0000.00817.56
8.1.40.0060.00317.54
8.1.30.0030.00617.66
8.1.20.0030.00617.55
8.1.10.0040.00417.65
8.1.00.0030.00517.58
8.0.300.0040.00418.77
8.0.290.0040.00416.60
8.0.280.0030.00318.50
8.0.270.0030.00317.30
8.0.260.0030.00516.77
8.0.250.0070.00016.98
8.0.240.0000.00717.02
8.0.230.0030.00316.97
8.0.220.0000.00716.86
8.0.210.0030.00316.89
8.0.200.0000.00716.88
8.0.190.0070.00016.98
8.0.180.0000.00716.80
8.0.170.0040.00416.80
8.0.160.0070.00316.97
8.0.150.0000.00816.78
8.0.140.0070.00016.84
8.0.130.0030.00313.31
8.0.120.0040.00416.84
8.0.110.0030.00516.73
8.0.100.0070.00016.68
8.0.90.0040.00416.71
8.0.80.0090.00616.88
8.0.70.0030.00516.85
8.0.60.0030.00516.72
8.0.50.0030.00316.89
8.0.30.0120.00617.00
8.0.20.0110.01017.40
8.0.10.0050.00217.02
8.0.00.0080.00916.74
7.4.330.0050.00015.55
7.4.320.0060.00016.36
7.4.300.0000.00716.55
7.4.290.0030.00316.49
7.4.280.0000.00716.45
7.4.270.0000.00816.61
7.4.260.0030.00316.44
7.4.250.0050.00416.49
7.4.240.0040.00416.47
7.4.230.0000.00716.54
7.4.220.0070.00016.33
7.4.210.0110.00816.43
7.4.200.0070.00016.23
7.4.160.0070.00816.49
7.4.140.0170.00317.86
7.4.130.0120.00816.64
7.4.120.0080.01016.50
7.4.110.0060.01216.65
7.4.100.0030.01516.41
7.4.90.0100.01016.66
7.4.80.0120.00419.39
7.4.70.0060.01216.42
7.4.60.0060.01016.57
7.4.50.0000.01516.38
7.4.40.0150.00316.39
7.4.00.0060.01014.73
7.3.330.0020.00213.02
7.3.320.0070.00013.02
7.3.310.0000.00716.16
7.3.300.0030.00316.22
7.3.290.0050.01116.23
7.3.280.0080.00816.27
7.3.260.0120.00616.47
7.3.240.0130.00716.43
7.3.230.0130.00316.31
7.3.210.0120.00416.68
7.3.200.0140.00716.28
7.3.190.0070.01016.49
7.3.180.0050.01016.55
7.3.170.0060.01216.34
7.3.160.0000.01516.59
7.3.10.3930.00814.44
7.3.00.3570.01314.57
7.2.330.0030.01316.67
7.2.320.0090.00916.75
7.2.310.0040.01816.59
7.2.300.0080.00816.75
7.2.290.0070.01016.85
7.2.130.5790.00714.84
7.2.120.4310.01014.45
7.2.110.2200.01014.67
7.2.100.4150.01014.32
7.2.90.4950.01314.97
7.2.80.4620.00714.66
7.2.70.5080.01314.64
7.2.60.5290.01014.38
7.2.50.0600.01614.81
7.2.40.0300.00914.70
7.2.30.4460.01014.86
7.2.20.0230.00614.80
7.2.10.0090.00614.75
7.2.00.0150.00915.00
7.1.250.5270.00314.01

preferences:
69.32 ms | 400 KiB | 5 Q