3v4l.org

run code in 300+ PHP versions simultaneously
<?php $some_string = 'ффффффффффффффффффффффффффффффф'; echo substr($some_string, -1); //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)
8.3.60.0120.00318.30
8.3.50.0100.00521.99
8.3.40.0110.00418.57
8.3.30.0100.00320.20
8.3.20.0040.00420.30
8.3.10.0040.00421.96
8.3.00.0070.00022.34
8.2.180.0140.00416.32
8.2.170.0070.00722.96
8.2.160.0070.00720.35
8.2.150.0070.00024.18
8.2.140.0150.00024.66
8.2.130.0100.01026.16
8.2.120.0040.00419.54
8.2.110.0040.00422.25
8.2.100.0000.01019.34
8.2.90.0000.00818.97
8.2.80.0040.00419.39
8.2.70.0000.00817.62
8.2.60.0070.00017.93
8.2.50.0000.00818.07
8.2.40.0080.00018.03
8.2.30.0080.00018.06
8.2.20.0040.00417.77
8.2.10.0040.00417.68
8.2.00.0060.00319.31
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0070.00419.16
8.1.220.0020.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.22
8.1.190.0040.00417.53
8.1.180.0050.00320.30
8.1.170.0030.00518.51
8.1.160.0000.00822.13
8.1.150.0080.00018.62
8.1.140.0040.00417.36
8.1.130.0040.00417.81
8.1.120.0030.00517.39
8.1.110.0050.00217.27
8.1.100.0040.00417.40
8.1.90.0040.00417.32
8.1.80.0000.00717.37
8.1.70.0000.00717.31
8.1.60.0000.01017.54
8.1.50.0040.00417.46
8.1.40.0040.00417.35
8.1.30.0000.00717.48
8.1.20.0040.00417.63
8.1.10.0060.00317.49
8.1.00.0050.00517.34
8.0.300.0000.00718.77
8.0.290.0040.00417.17
8.0.280.0000.00718.28
8.0.270.0030.00317.34
8.0.260.0000.00616.72
8.0.250.0070.00016.96
8.0.240.0040.00416.99
8.0.230.0070.00016.86
8.0.220.0070.00016.79
8.0.210.0000.00716.70
8.0.200.0030.00316.81
8.0.190.0030.00616.93
8.0.180.0040.00716.74
8.0.170.0000.00816.91
8.0.160.0050.00216.89
8.0.150.0000.00716.78
8.0.140.0040.00416.81
8.0.130.0000.00513.23
8.0.120.0050.00316.81
8.0.110.0000.00716.79
8.0.100.0040.00416.81
8.0.90.0000.00716.69
8.0.80.0060.00916.86
8.0.70.0040.00416.86
8.0.60.0000.00816.68
8.0.50.0020.00516.93
8.0.30.0130.00816.95
8.0.20.0110.01017.40
8.0.10.0000.00717.00
8.0.00.0080.01216.69
7.4.330.0050.00015.00
7.4.320.0030.00316.53
7.4.300.0040.00416.34
7.4.290.0030.00316.46
7.4.280.0040.00416.48
7.4.270.0030.00316.43
7.4.260.0030.00316.45
7.4.250.0000.00716.55
7.4.240.0030.00416.50
7.4.230.0050.00316.60
7.4.220.0100.00716.48
7.4.210.0110.00416.43
7.4.200.0030.00316.42
7.4.190.0000.00716.64
7.4.160.0130.00716.50
7.4.150.0120.00917.40
7.4.140.0070.01417.86
7.4.130.0090.01116.41
7.4.120.0090.01016.39
7.4.110.0150.00316.48
7.4.100.0130.00316.46
7.4.90.0060.01116.39
7.4.80.0100.00719.39
7.4.70.0130.00316.55
7.4.60.0040.01116.54
7.4.50.0000.00516.51
7.4.40.0130.00322.77
7.4.30.0050.01016.50
7.4.00.0080.00814.89
7.3.330.0000.00613.06
7.3.320.0000.00513.02
7.3.310.0030.00316.14
7.3.300.0000.00716.16
7.3.290.0090.00916.12
7.3.280.0060.01216.12
7.3.270.0120.00917.40
7.3.260.0060.01116.28
7.3.250.0070.01216.37
7.3.240.0090.01216.21
7.3.230.0070.01016.42
7.3.210.0040.01116.14
7.3.200.0120.00619.39
7.3.190.0170.00416.19
7.3.180.0120.00316.34
7.3.170.0140.00716.27
7.3.160.0090.00616.18
7.3.120.0030.01114.84
7.2.330.0040.01616.47
7.2.320.0040.01416.30
7.2.310.0090.01216.25
7.2.300.0140.00316.61
7.2.290.0120.00916.21
7.2.00.0070.00719.25
7.1.100.0030.00617.77
7.1.70.0030.00517.16
7.1.60.0090.01519.21
7.1.50.0110.00716.77
7.1.00.0030.03322.46
7.0.200.0110.00414.89
7.0.140.0070.06322.15
7.0.60.0100.04719.93
7.0.50.0070.08017.77
7.0.40.0130.04319.92
7.0.30.0370.07020.18
7.0.20.0330.07320.33
7.0.10.0470.06320.16
7.0.00.0030.04720.09
5.6.280.0130.06020.90
5.6.210.0030.06720.74
5.6.200.0100.07318.12
5.6.190.0130.06320.59
5.6.180.0230.07720.27
5.6.170.0200.04720.47
5.6.160.0030.07720.52
5.6.150.0070.04718.12
5.6.140.0100.04718.07
5.6.130.0100.08018.07
5.6.120.0070.07320.97
5.6.110.0070.08721.11
5.6.100.0030.05720.98
5.6.90.0100.04720.96
5.6.80.0070.08020.37
5.6.70.0230.08020.34
5.5.350.0000.08720.35
5.5.340.0130.03018.02
5.5.330.0000.04320.28
5.5.320.0270.07020.20
5.5.310.0230.03320.12
5.5.300.0030.04018.01
5.5.290.0070.08017.92
5.5.280.0030.04020.71
5.5.270.0070.07020.86
5.5.260.0070.05720.78
5.5.250.0130.07720.57
5.5.240.0200.06720.25
5.4.450.0130.05319.32
5.4.440.1070.06719.60
5.4.430.1030.07719.23
5.4.420.0170.04719.29
5.4.410.0130.05719.33
5.4.400.0400.05318.55
5.4.390.0500.06018.72
5.4.380.0230.06018.72
5.4.370.0130.05318.64
5.4.360.0130.05018.67
5.4.350.0070.03811.97
5.4.340.0100.03711.96
5.4.320.0100.03712.45
5.4.310.0090.04512.45
5.4.300.0080.03912.45
5.4.290.0080.03512.45
5.4.280.0100.03312.34
5.4.270.0050.03812.35
5.4.260.0090.04312.35
5.4.250.0070.05719.00
5.4.240.0100.06718.73
5.4.230.0170.07018.98
5.4.220.0100.05319.00
5.4.210.0100.05318.86
5.4.200.0070.05318.86
5.4.190.0130.06318.69
5.4.180.0130.05018.90
5.4.170.0100.05018.68
5.4.160.0130.05018.95
5.4.150.0100.05018.80
5.4.140.0100.04716.24
5.4.130.0070.06016.26
5.4.120.0100.05016.39
5.4.110.0100.04716.46
5.4.100.0030.05316.22
5.4.90.0170.06016.46
5.4.80.0070.06716.40
5.4.70.0100.07016.32
5.4.60.0100.06316.45
5.4.50.0130.06316.47
5.4.40.0100.05016.49
5.4.30.0130.04316.43
5.4.20.0170.07016.17
5.4.10.0030.07716.19
5.4.00.0100.06715.74
5.3.290.0030.04312.80
5.3.280.0130.05014.42
5.3.270.0030.05714.61
5.3.260.0030.05314.30
5.3.250.0170.04014.69
5.3.240.0070.05014.63
5.3.230.0130.04314.60
5.3.220.0070.05314.57
5.3.210.0100.07314.58
5.3.200.0070.05314.55
5.3.190.0030.05714.58
5.3.180.0100.05014.58
5.3.170.0170.04314.57
5.3.160.0070.05314.52
5.3.150.0100.05314.54
5.3.140.0100.04714.60
5.3.130.0130.06314.24
5.3.120.0100.08014.63
5.3.110.0130.07314.70
5.3.100.0170.04013.80
5.3.90.0100.06313.92
5.3.80.0100.05313.98
5.3.70.0030.05313.93
5.3.60.0100.06714.00
5.3.50.0100.06713.80
5.3.40.0000.05313.96
5.3.30.0070.04713.92
5.3.20.0130.04313.62
5.3.10.0070.04713.53
5.3.00.0070.04713.66
5.2.170.0100.05311.04
5.2.160.0100.03711.16
5.2.150.0000.04311.23
5.2.140.0030.04310.97
5.2.130.0030.04011.11
5.2.120.0070.03711.02
5.2.110.0070.03711.24
5.2.100.0070.03711.10
5.2.90.0130.04310.94
5.2.80.0000.04711.00
5.2.70.0070.04011.08
5.2.60.0030.04710.81
5.2.50.0070.04011.12
5.2.40.0070.04011.02
5.2.30.0030.04311.06
5.2.20.0030.04011.06
5.2.10.0030.04010.77
5.2.00.0030.04310.89
5.1.60.0070.0309.95
5.1.50.0070.0409.76
5.1.40.0030.03310.03
5.1.30.0070.03310.41
5.1.20.0000.04710.11
5.1.10.0000.0379.95
5.1.00.0130.03310.00
5.0.50.0130.0238.60
5.0.40.0030.0278.50
5.0.30.0130.0308.13
5.0.20.0000.0308.14
5.0.10.0070.0278.09
5.0.00.0030.0408.11
4.4.90.0130.0236.35
4.4.80.0030.0206.35
4.4.70.0030.0206.35
4.4.60.0030.0206.35
4.4.50.0030.0206.35
4.4.40.0000.0506.35
4.4.30.0070.0176.35
4.4.20.0030.0206.35
4.4.10.0000.0276.35
4.4.00.0000.0406.35
4.3.110.0000.0236.45
4.3.100.0070.0176.45
4.3.90.0030.0176.42
4.3.80.0000.0336.40
4.3.70.0030.0176.40
4.3.60.0030.0206.40
4.3.50.0070.0176.40
4.3.40.0070.0306.40
4.3.30.0070.0176.40
4.3.20.0030.0206.40
4.3.10.0000.0276.40
4.3.00.0070.0236.40

preferences:
53.99 ms | 401 KiB | 5 Q