3v4l.org

run code in 300+ PHP versions simultaneously
<?php $assoc = count_chars('hello', 1); var_export( array_reduce( array_keys($assoc), fn ($result, $k) => $result += [chr($k) => $assoc[$k]], [] ) ); var_export( array_count_values(str_split('hello')) );

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)
8.5.10.0100.00718.57
8.5.00.0130.00819.97
8.4.160.0110.00723.98
8.4.150.0030.00014.05
8.4.140.0140.00917.53
8.4.130.0110.00917.68
8.4.120.0140.00620.38
8.4.110.0090.00919.00
8.4.100.0120.00817.41
8.4.90.0060.00418.63
8.4.80.0120.00817.78
8.4.70.0110.00917.90
8.4.60.0140.00718.71
8.4.50.0110.00919.70
8.4.40.0100.01017.62
8.4.30.0100.01020.77
8.4.20.0160.00318.02
8.4.10.0030.00619.46
8.3.280.0030.00014.05
8.3.270.0080.01216.54
8.3.260.0100.01016.61
8.3.250.0070.00518.88
8.3.240.0110.00816.79
8.3.230.0110.00816.59
8.3.220.0110.00817.37
8.3.210.0050.00316.74
8.3.200.0050.00316.88
8.3.190.0110.00816.27
8.3.180.0090.00816.48
8.3.170.0160.00317.15
8.3.160.0040.00416.69
8.3.150.0050.00320.68
8.3.140.0030.00616.85
8.3.130.0040.00716.57
8.3.120.0110.00020.92
8.3.110.0030.00620.94
8.3.100.0120.00924.06
8.3.90.0000.01826.77
8.3.80.0070.00718.55
8.3.70.0140.00318.32
8.3.60.0110.01118.56
8.3.50.0110.01116.72
8.3.40.0140.00021.95
8.3.30.0040.01119.18
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.290.0090.01120.57
8.2.280.0050.00418.41
8.2.270.0140.00417.46
8.2.260.0070.00718.98
8.2.250.0070.01318.47
8.2.240.0160.00017.02
8.2.230.0070.00722.58
8.2.220.0110.00037.54
8.2.210.0070.01126.77
8.2.200.0100.01018.41
8.2.190.0070.01118.16
8.2.180.0110.00417.00
8.2.170.0180.00022.96
8.2.160.0070.01122.96
8.2.150.0030.00525.66
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.72
8.2.110.0100.00020.35
8.2.100.0230.00717.42
8.2.90.0240.00517.42
8.2.80.0260.00517.42
8.2.70.0280.00417.42
8.2.60.0260.00517.42
8.2.50.0330.00017.42
8.2.40.0260.00317.50
8.2.30.0200.00617.50
8.2.20.0210.01017.50
8.2.10.0160.01517.42
8.2.00.0230.00517.42
8.1.330.0130.00521.94
8.1.320.0070.00220.21
8.1.310.0140.00016.84
8.1.300.0040.00418.29
8.1.290.0080.01130.84
8.1.280.0150.00625.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0090.00020.84
8.1.230.0090.00317.77
8.1.220.0240.00317.42
8.1.210.0300.00317.42
8.1.200.0290.00017.42
8.1.190.0200.00717.42
8.1.180.0210.00517.42
8.1.170.0240.00417.42
8.1.160.0260.00017.42
8.1.150.0180.01017.42
8.1.140.0230.00617.42
8.1.130.0260.00317.42
8.1.120.0280.00317.42
8.1.110.0230.00317.42
8.1.100.0210.00617.42
8.1.90.0230.00817.42
8.1.80.0230.00617.42
8.1.70.0280.00417.42
8.1.60.0190.00717.42
8.1.50.0200.00617.50
8.1.40.0140.01417.42
8.1.30.0280.00017.42
8.1.20.0190.00617.42
8.1.10.0230.00517.42
8.1.00.0240.00217.42
8.0.300.0250.00217.42
8.0.290.0210.00717.42
8.0.280.0260.00217.42
8.0.270.0230.00417.42
8.0.260.0190.00917.42
8.0.250.0240.00417.42
8.0.240.0270.00017.42
8.0.230.0270.00317.42
8.0.220.0230.00417.42
8.0.210.0250.00217.42
8.0.200.0250.00517.42
8.0.190.0260.00017.42
8.0.180.0300.00017.42
8.0.170.0210.00617.42
8.0.160.0240.00417.42
8.0.150.0230.00517.42
8.0.140.0210.01117.42
8.0.130.0200.01017.42
8.0.120.0250.00617.42
8.0.110.0210.00817.42
8.0.100.0230.00317.42
8.0.90.0240.00417.42
8.0.80.0190.00817.42
8.0.70.0190.00917.42
8.0.60.0210.00817.42
8.0.50.0260.00017.42
8.0.30.0160.01017.42
8.0.20.0210.00617.42
8.0.10.0200.00517.42

preferences:
91.24 ms | 403 KiB | 5 Q