3v4l.org

run code in 300+ PHP versions simultaneously
<?php $setting_result = mb_substitute_character('long'); $decodedText = 'a'.chr(0x81).'b'; print(mb_convert_encoding($decodedText, 'UTF-8', 'ASCII'));

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)
8.5.10.0080.00916.61
8.5.00.0140.00819.65
8.4.160.0110.00923.50
8.4.150.0030.00014.05
8.4.140.0120.01317.45
8.4.130.0140.00717.64
8.4.120.0100.01020.27
8.4.110.0090.00522.48
8.4.100.0050.00417.69
8.4.90.0080.00120.41
8.4.80.0090.00718.88
8.4.70.0100.01118.82
8.4.60.0130.00720.57
8.4.50.0120.00418.48
8.4.40.0060.01317.86
8.4.30.0150.00617.63
8.4.20.0390.00817.40
8.4.10.0440.00517.33
8.3.280.0140.00618.35
8.3.270.0120.00816.35
8.3.260.0080.00816.50
8.3.250.0050.00318.79
8.3.240.0080.00816.69
8.3.230.0130.00716.56
8.3.220.0110.00819.03
8.3.210.0130.00516.41
8.3.200.0050.00416.59
8.3.190.0110.00716.96
8.3.180.0050.00318.70
8.3.170.0060.01216.98
8.3.160.0360.01016.31
8.3.150.0400.00516.29
8.3.140.0400.00716.30
8.3.130.0310.01116.37
8.3.120.0370.00416.41
8.3.110.0350.00916.24
8.3.100.0320.01016.38
8.3.90.0390.00616.41
8.3.80.0350.00616.34
8.3.70.0390.00616.32
8.3.60.0340.01016.23
8.3.50.0340.00516.40
8.3.40.0320.00717.23
8.3.30.0310.00417.20
8.3.20.0310.00717.21
8.3.10.0270.01017.30
8.3.00.0160.00617.21
8.2.290.0100.00916.70
8.2.280.0110.00818.43
8.2.270.0310.00716.53
8.2.260.0340.00916.39
8.2.250.0320.00516.66
8.2.240.0280.01016.39
8.2.230.0320.00816.43
8.2.220.0310.00816.44
8.2.210.0310.00716.46
8.2.200.0310.00616.40
8.2.190.0260.01116.55
8.2.180.0260.01116.28
8.2.170.0370.00617.69
8.2.160.0330.00817.58
8.2.150.0320.00717.47
8.2.140.0310.00817.56
8.2.130.0370.00617.41
8.2.120.0340.00717.44
8.2.110.0360.00617.44
8.2.100.0330.01117.55
8.2.90.0310.00817.60
8.2.80.0300.00817.54
8.2.70.0310.00617.49
8.2.60.0320.00717.38
8.2.50.0290.00917.48
8.2.40.0290.00717.50
8.2.30.0280.00717.64
8.2.20.0270.00717.38
8.2.10.0290.00717.36
8.2.00.0330.00617.47
8.1.320.0130.00516.10
8.0.300.0170.00718.01

preferences:
33.53 ms | 403 KiB | 5 Q