3v4l.org

run code in 300+ PHP versions simultaneously
<?php $some_string = 'ффффффффффффффффффффффффффффффф'; echo mb_substr($some_string, -1,40,'UTF-8'); //echo strlen(json_encode(['message' => $some_string])).PHP_EOL; //$encode = base64_encode($some_string); //var_dump($encode); //var_dump([mb_strimwidth(json_encode(array('message' => stripslashes($some_string))),0,200,'...'),strlen(mb_strimwidth(json_encode(array('message' => $some_string)),0,200,'...'))]); //var_dump(json_encode(array('message' => str_replace(array('\u041a','\u0443'), array('',''), $some_string)))); //} //var_dump(mb_detect_encoding($some_string)); //var_dump(strlen(json_encode(array('message' => $some_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)
8.3.60.0140.00718.27
8.3.50.0110.00321.98
8.3.40.0090.00618.81
8.3.30.0140.00020.14
8.3.20.0050.00320.34
8.3.10.0000.00722.04
8.3.00.0040.00422.52
8.2.180.0150.00618.16
8.2.170.0100.01022.96
8.2.160.0100.00320.28
8.2.150.0050.00224.18
8.2.140.0090.00624.66
8.2.130.0120.00326.16
8.2.120.0080.00019.64
8.2.110.0060.00320.41
8.2.100.0060.00617.91
8.2.90.0000.00718.34
8.2.80.0000.00819.38
8.2.70.0090.00017.63
8.2.60.0090.00017.93
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0060.00317.95
8.2.20.0040.00417.55
8.2.10.0030.00517.70
8.2.00.0120.00017.63
8.1.280.0140.00025.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00722.05
8.1.230.0100.00320.97
8.1.220.0070.00317.74
8.1.210.0050.00318.91
8.1.200.0040.00416.98
8.1.190.0060.00317.40
8.1.180.0000.00920.15
8.1.170.0030.00618.40
8.1.160.0040.00422.11
8.1.150.0040.00418.49
8.1.140.0030.00517.31
8.1.130.0070.00017.89
8.1.120.0030.00617.30
8.1.110.0000.00717.24
8.1.100.0000.00817.46
8.1.90.0000.00717.37
8.1.80.0030.00517.43
8.1.70.0030.00317.34
8.1.60.0030.00617.54
8.1.50.0000.00717.45
8.1.40.0040.00417.41
8.1.30.0030.00617.69
8.1.20.0040.00417.66
8.1.10.0040.00417.54
8.1.00.0050.00517.37
8.0.300.0040.00419.98
8.0.290.0000.00817.28
8.0.280.0030.00318.43
8.0.270.0000.00717.35
8.0.260.0000.00716.90
8.0.250.0000.00717.01
8.0.240.0040.00416.94
8.0.230.0030.00316.85
8.0.220.0030.00416.88
8.0.210.0030.00316.85
8.0.200.0040.00417.00
8.0.190.0070.00016.99
8.0.180.0060.00316.91
8.0.170.0000.00716.85
8.0.160.0070.00016.82
8.0.150.0100.00016.86
8.0.140.0040.00416.81
8.0.130.0000.00513.37
8.0.120.0060.00316.87
8.0.110.0060.00316.89
8.0.100.0000.00716.77
8.0.90.0000.00716.94
8.0.80.0060.00916.93
8.0.70.0070.00016.89
8.0.60.0040.00416.94
8.0.50.0070.00016.77
8.0.30.0090.00917.13
8.0.20.0130.00517.40
8.0.10.0000.00716.89
8.0.00.0060.01016.60
7.4.330.0000.00615.00
7.4.320.0030.00316.37
7.4.300.0050.00216.60
7.4.290.0000.00716.43
7.4.280.0080.00016.43
7.4.270.0000.00716.46
7.4.260.0070.00316.42
7.4.250.0040.00416.30
7.4.240.0050.00216.39
7.4.230.0000.00716.55
7.4.220.0130.01016.48
7.4.210.0090.00916.41
7.4.200.0030.00316.65
7.4.190.0030.00316.64
7.4.160.0050.01116.53
7.4.150.0170.00017.40
7.4.140.0090.01117.86
7.4.130.0110.00616.36
7.4.120.0060.01216.62
7.4.110.0070.01116.34
7.4.100.0110.01116.43
7.4.90.0080.01216.42
7.4.80.0070.01519.39
7.4.70.0140.00316.60
7.4.60.0060.01216.52
7.4.50.0000.00516.54
7.4.40.0040.01222.77
7.4.30.0030.01316.36
7.4.00.0060.00915.00
7.3.330.0000.00513.02
7.3.320.0030.00312.98
7.3.310.0030.00316.19
7.3.300.0070.00016.09
7.3.290.0130.00716.21
7.3.280.0080.00916.16
7.3.270.0090.00917.40
7.3.260.0110.00515.99
7.3.250.0120.00716.33
7.3.240.0090.00916.17
7.3.230.0070.01016.39
7.3.210.0100.00716.30
7.3.200.0130.00319.39
7.3.190.0190.00316.36
7.3.180.0080.00716.32
7.3.170.0060.01016.27
7.3.160.0060.01016.48
7.3.120.0070.01014.98
7.2.330.0090.00916.53
7.2.320.0090.00916.55
7.2.310.0130.00316.46
7.2.300.0060.01016.36
7.2.290.0060.00916.22
7.1.100.0260.00012.19
7.1.70.0030.00717.14
7.1.60.0070.01719.21
7.1.50.0070.01316.83
7.1.00.0000.03722.45
7.0.200.0240.00714.93
7.0.140.0000.07322.23
7.0.60.0170.07720.06
7.0.50.0030.08017.77
7.0.40.0130.08320.04
7.0.30.0300.08020.16
7.0.20.0270.04319.99
7.0.10.0230.08320.13
7.0.00.0100.07320.18
5.6.280.0100.07021.06
5.6.210.0030.08320.75
5.6.200.0200.06718.15
5.6.190.0100.08720.31
5.6.180.0200.08020.35
5.6.170.0130.04720.71
5.6.160.0100.07720.54
5.6.150.0030.05718.08
5.6.140.0000.04318.10
5.6.130.0070.08018.12
5.6.120.0000.04320.98
5.6.110.0070.05020.98
5.6.100.0070.08721.07
5.6.90.0170.06721.11
5.6.80.0100.05720.39
5.6.70.0270.08020.35
5.5.350.0030.06320.32
5.5.340.0070.08317.89
5.5.330.0030.04320.21
5.5.320.0200.04320.20
5.5.310.0200.03720.29
5.5.300.0100.07718.03
5.5.290.0130.04317.91
5.5.280.0070.04020.76
5.5.270.0000.04320.64
5.5.260.0100.07320.87
5.5.250.0100.07720.45
5.5.240.0100.06320.13
5.4.450.0270.05319.45
5.4.440.0170.06019.59
5.4.430.0100.05719.55
5.4.420.0270.04319.46
5.4.410.0200.05019.45
5.4.400.0270.05718.75
5.4.390.0570.06718.69
5.4.380.0230.05318.49
5.4.370.0070.06018.67
5.4.360.0170.04718.75
5.4.350.0070.04311.97
5.4.340.0060.03811.97
5.4.320.0060.04212.45
5.4.310.0040.04312.45
5.4.300.0070.03812.45
5.4.290.0070.03712.45
5.4.280.0080.03212.34
5.4.270.0050.03512.34
5.4.260.0070.03912.34
5.4.250.0100.05718.66
5.4.240.0130.06718.69
5.4.230.0070.05319.00
5.4.220.0030.06018.80
5.4.210.0030.05318.73
5.4.200.0070.08018.84
5.4.190.0200.04018.63
5.4.180.0170.05018.63
5.4.170.0070.05319.00
5.4.160.0070.05318.77
5.4.150.0070.07018.82
5.4.140.0130.05016.25
5.4.130.0030.05316.23
5.4.120.0130.04316.38
5.4.110.0130.04316.51
5.4.100.0030.05316.24
5.4.90.0130.04316.32
5.4.80.0100.04716.22
5.4.70.0100.04316.24
5.4.60.0000.05716.23
5.4.50.0170.04316.46
5.4.40.0130.04316.39
5.4.30.0070.04716.23
5.4.20.0030.05016.27
5.4.10.0100.05316.36
5.4.00.0070.05015.93
5.3.290.0050.04012.80
5.3.280.0030.05314.74
5.3.270.0030.05714.75
5.3.260.0100.04714.46
5.3.250.0070.05014.45
5.3.240.0230.05014.44
5.3.230.0030.06714.59
5.3.220.0070.05314.43
5.3.210.0100.04714.65
5.3.200.0070.06014.65
5.3.190.0100.07014.58
5.3.180.0130.06014.43
5.3.170.0100.04714.71
5.3.160.0030.05714.60
5.3.150.0070.05014.41
5.3.140.0030.05314.71
5.3.130.0100.05014.52
5.3.120.0070.05314.43
5.3.110.0070.05314.32
5.3.100.0070.06013.87
5.3.90.0000.05713.79
5.3.80.0070.06714.03
5.3.70.0000.05713.71
5.3.60.0030.05314.01
5.3.50.0130.05013.96
5.3.40.0100.04713.94
5.3.30.0030.04713.74
5.3.20.0100.05313.39
5.3.10.0100.04713.80
5.3.00.0170.04713.73
5.2.170.0070.04011.05
5.2.160.0030.04311.16
5.2.150.0070.04011.05
5.2.140.0070.04011.14
5.2.130.0100.04311.00
5.2.120.0030.04711.25
5.2.110.0100.04011.10
5.2.100.0030.04011.10
5.2.90.0030.04011.03
5.2.80.0070.04010.97
5.2.70.0070.03711.08
5.2.60.0070.04011.07
5.2.50.0030.04311.04
5.2.40.0070.04011.01
5.2.30.0070.04010.80
5.2.20.0070.04010.71
5.2.10.0070.05311.07
5.2.00.0070.05710.69
5.1.60.0070.03010.03
5.1.50.0030.0509.95
5.1.40.0030.03310.03
5.1.30.0070.04310.54
5.1.20.0130.03310.56
5.1.10.0070.0339.98
5.1.00.0100.03010.00
5.0.50.0000.0308.68
5.0.40.0070.0278.31
5.0.30.0030.0478.41
5.0.20.0070.0238.24
5.0.10.0030.0278.15
5.0.00.0100.0338.14
4.4.90.0030.0206.59
4.4.80.0000.0236.59
4.4.70.0030.0206.59
4.4.60.0070.0176.59
4.4.50.0030.0306.59
4.4.40.0100.0276.59
4.4.30.0100.0206.59
4.4.20.0000.0236.59
4.4.10.0030.0276.59
4.4.00.0030.0336.59
4.3.110.0030.0206.59
4.3.100.0000.0236.59
4.3.90.0000.0236.59
4.3.80.0100.0276.59
4.3.70.0030.0176.59
4.3.60.0030.0206.59
4.3.50.0000.0276.95
4.3.40.0030.0306.95
4.3.30.0000.0236.95
4.3.20.0000.0236.94
4.3.10.0030.0206.93
4.3.00.0070.0176.34

preferences:
38.42 ms | 401 KiB | 5 Q