3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "\xe2\x82\xac"; var_dump(mb_internal_encoding()); var_dump($string); var_dump(unpack('C*', $string)); $utf8string = mb_convert_encoding($string, "UTF-8"); var_dump($utf8string); var_dump(unpack('C*', $utf8string)); mb_internal_encoding("UTF-8"); var_dump($string); var_dump($utf8string);

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)
8.3.40.0120.00318.50
8.3.30.0120.00318.70
8.3.20.0090.00018.70
8.3.10.0080.00021.82
8.3.00.0030.00517.67
8.2.170.0110.00422.96
8.2.160.0040.01419.04
8.2.150.0140.00025.66
8.2.140.0180.00024.66
8.2.130.0040.00421.00
8.2.120.0030.00526.35
8.2.110.0000.00920.89
8.2.100.0040.00817.66
8.2.90.0000.00817.91
8.2.80.0000.00819.39
8.2.70.0040.00418.04
8.2.60.0030.00517.50
8.2.50.0020.00518.10
8.2.40.0030.00722.19
8.2.30.0040.00419.09
8.2.20.0000.00817.59
8.2.10.0000.00718.15
8.2.00.0060.00317.99
8.1.270.0030.00622.05
8.1.260.0000.00928.09
8.1.250.0090.00028.09
8.1.240.0070.00420.61
8.1.230.0070.00420.97
8.1.220.0080.00017.74
8.1.210.0060.00318.77
8.1.200.0040.00417.23
8.1.190.0000.00817.23
8.1.180.0060.00318.10
8.1.170.0080.00018.64
8.1.160.0000.00818.95
8.1.150.0050.00218.90
8.1.140.0000.00819.61
8.1.130.0040.00417.69
8.1.120.0040.00417.47
8.1.110.0000.00817.46
8.1.100.0040.00417.37
8.1.90.0080.00017.48
8.1.80.0000.00717.48
8.1.70.0030.00317.41
8.1.60.0040.00417.64
8.1.50.0040.00417.55
8.1.40.0060.00317.57
8.1.30.0000.00817.67
8.1.20.0040.00417.74
8.1.10.0040.00417.54
8.1.00.0040.00417.49
8.0.300.0050.00520.03
8.0.290.0050.00216.75
8.0.280.0000.00718.53
8.0.270.0070.00017.28
8.0.260.0000.00617.32
8.0.250.0000.00716.96
8.0.240.0040.00416.97
8.0.230.0000.00717.02
8.0.220.0040.00416.94
8.0.210.0060.00416.83
8.0.200.0030.00316.87
8.0.190.0030.00516.94
8.0.180.0040.00416.86
8.0.170.0020.00516.94
8.0.160.0000.00816.94
8.0.150.0000.00716.86
8.0.140.0030.00316.75
8.0.130.0030.00313.30
8.0.120.0000.00816.91
8.0.110.0000.00816.87
8.0.100.0050.00216.81
8.0.90.0040.00416.98
8.0.80.0070.01016.88
8.0.70.0040.00416.79
8.0.60.0040.00416.79
8.0.50.0000.00816.98
8.0.30.0130.00517.13
8.0.20.0130.00817.40
8.0.10.0000.00716.85
8.0.00.0130.00916.66
7.4.330.0020.00215.08
7.4.320.0030.00316.66
7.4.300.0000.00616.48
7.4.290.0000.00716.62
7.4.280.0060.00516.52
7.4.270.0050.00316.48
7.4.260.0030.00316.49
7.4.250.0050.00316.39
7.4.240.0040.00416.53
7.4.230.0030.00316.71
7.4.220.0090.00916.65
7.4.210.0120.00416.63
7.4.200.0000.00716.73
7.4.160.0130.00316.39
7.4.150.0060.01217.40
7.4.140.0100.00817.86
7.4.130.0130.00716.43
7.4.120.0090.01116.54
7.4.110.0070.01116.52
7.4.100.0060.01216.29
7.4.90.0100.00716.45
7.4.80.0150.00619.39
7.4.70.0050.01116.47
7.4.60.0130.00616.39
7.4.50.0100.00716.53
7.4.40.0160.00016.38
7.4.30.0090.01216.61
7.4.00.0090.00614.93
7.3.330.0020.00213.07
7.3.320.0050.00013.21
7.3.310.0000.00716.16
7.3.300.0030.00316.28
7.3.290.0000.00716.21
7.3.280.0110.00616.25
7.3.270.0120.01217.40
7.3.260.0100.00716.30
7.3.250.0130.00716.44
7.3.240.0060.01416.34
7.3.230.0050.01416.39
7.3.210.0090.00916.19
7.3.200.0100.00716.29
7.3.190.0080.00816.16
7.3.180.0130.00316.45
7.3.170.0100.00716.13
7.3.160.0160.00616.46
7.3.70.0040.00814.53
7.3.60.0000.02314.82
7.3.50.0110.01014.64
7.3.40.0070.00914.41
7.3.30.0040.01114.70
7.3.20.0110.00415.55
7.3.10.0090.00315.75
7.3.00.0070.00616.03
7.2.330.0070.01016.55
7.2.320.0100.01416.33
7.2.310.0090.00916.31
7.2.300.0070.01116.57
7.2.290.0100.00716.68
7.2.200.0120.00814.62
7.2.190.0030.01014.78
7.2.180.0000.01714.89
7.2.170.0080.01214.81
7.2.160.0100.01014.98
7.2.150.0100.00715.83
7.2.140.0030.01715.94
7.2.130.0090.00916.18
7.2.120.0080.00816.00
7.2.110.0360.00516.12
7.2.100.0100.00916.24
7.2.90.0100.00916.16
7.2.80.0080.00616.06
7.2.70.0060.01216.23
7.2.60.0080.00716.38
7.2.50.0110.00716.11
7.2.40.0080.01116.20
7.2.30.0110.00516.03
7.2.20.0130.00516.15
7.2.10.0140.00916.17
7.2.00.0120.00816.98
7.1.300.0030.00715.89
7.1.290.0030.01215.85
7.1.280.0120.01014.77
7.1.270.0080.00914.82
7.1.260.0140.00714.66
7.1.250.0070.00715.14
7.1.240.0140.00614.75
7.1.230.0170.01314.87
7.1.220.0150.01114.83
7.1.210.0090.00814.77
7.1.200.0110.00615.07
7.1.190.0110.00714.63
7.1.180.0200.00314.70
7.1.170.0110.00314.71
7.1.160.0110.00614.60
7.1.150.0170.00814.75
7.1.140.0130.00914.63
7.1.130.0100.00914.64
7.1.120.0130.00714.78
7.1.110.0510.01114.67
7.1.100.0120.00715.71
7.1.90.0200.00114.55
7.1.80.0200.00514.78
7.1.70.0120.01015.58
7.1.60.0160.01416.21
7.1.50.0110.00714.85
7.1.40.0140.01114.70
7.1.30.0220.00314.87
7.1.20.0150.01314.77
7.1.10.0080.01414.65
7.1.00.0100.03317.25
7.0.330.0130.00314.26
7.0.320.0080.01014.42
7.0.310.0170.00614.43
7.0.300.0130.01114.37
7.0.290.0100.01314.44
7.0.280.0180.00514.21
7.0.270.0140.01214.41
7.0.260.0120.01314.42
7.0.250.0150.01014.39
7.0.240.0170.00614.39
7.0.230.0210.00614.24
7.0.220.0440.00614.26
7.0.210.0170.01314.39
7.0.200.0300.00614.41
7.0.190.0180.00714.41
7.0.180.0220.00614.46
7.0.170.0180.01114.50
7.0.160.0180.01314.52
7.0.150.0180.00614.30
7.0.140.0180.00814.43
7.0.130.0090.01214.44
7.0.120.0120.00714.35
7.0.110.0110.01114.38
7.0.100.0120.02416.17
7.0.90.0080.03616.21
7.0.80.0140.02016.31
7.0.70.0200.01716.34
7.0.60.0150.02216.25
7.0.50.0200.01716.54
7.0.40.0150.01916.43
7.0.30.0100.02316.30
7.0.20.0080.02016.25
7.0.10.0110.02816.34
7.0.00.0130.01916.34
5.6.400.0090.00914.13
5.6.390.0090.01014.42
5.6.380.0080.01114.05
5.6.370.0100.01014.23
5.6.360.0110.00714.27
5.6.350.0140.00714.28
5.6.340.0180.00714.26
5.6.330.0110.00614.23
5.6.320.0170.00514.13
5.6.310.0180.01114.12
5.6.300.0170.00514.04
5.6.290.0130.01214.03
5.6.280.0090.02916.47
5.6.270.0120.00514.12
5.6.260.0160.00714.13
5.6.250.0170.02916.44
5.6.240.0110.03316.33
5.6.230.0120.03116.31
5.6.220.0090.02116.29
5.6.210.0130.01716.29
5.6.200.0100.01816.38
5.6.190.0050.02316.41
5.6.180.0090.02116.39
5.6.170.0140.01816.45
5.6.160.0080.02116.40
5.6.150.0070.02516.34
5.6.140.0100.02116.50
5.6.130.0130.01916.36
5.6.120.0200.01516.53
5.6.110.0170.01516.39
5.6.100.0130.01416.37
5.6.90.0160.01816.41
5.6.80.0100.02316.09
5.6.70.0170.03016.17
5.6.60.0100.02816.24
5.6.50.0180.03216.30
5.6.40.0150.02416.27
5.6.30.0090.03416.27
5.6.20.0140.02316.08
5.6.10.0100.03016.25
5.6.00.0130.03516.13
5.5.380.0110.03016.22
5.5.370.0180.01516.15
5.5.360.0100.02216.25
5.5.350.0110.01816.18
5.5.340.0090.02016.41
5.5.330.0130.03216.36
5.5.320.0150.02916.38
5.5.310.0070.02216.42
5.5.300.0090.02716.41
5.5.290.0100.02216.48
5.5.280.0130.02016.27
5.5.270.0100.01916.38
5.5.260.0100.02216.26
5.5.250.0080.03216.20
5.5.240.0130.01716.11
5.5.230.0180.03016.09
5.5.220.0140.02616.12
5.5.210.0140.02416.12
5.5.200.0110.03116.22
5.5.190.0140.03016.17
5.5.180.0120.03516.10
5.5.170.0110.01114.11
5.5.160.0150.03216.12
5.5.150.0120.03516.01
5.5.140.0090.02716.01
5.5.130.0130.02815.99
5.5.120.0080.03016.11
5.5.110.0090.03616.09
5.5.100.0100.03316.04
5.5.90.0110.03216.07
5.5.80.0130.03416.06
5.5.70.0150.02316.02
5.5.60.0080.03216.12
5.5.50.0120.02716.00
5.5.40.0120.02515.94
5.5.30.0160.03416.06
5.5.20.0120.03216.17
5.5.10.0160.02716.10
5.5.00.0120.01816.12
5.4.450.0050.00511.00
5.4.440.0080.01110.91
5.4.430.0120.00810.92
5.4.420.0170.00311.03
5.4.410.0120.00010.91
5.4.400.0160.00410.78
5.4.390.0140.01010.76
5.4.380.0040.01810.59
5.4.370.0120.00610.88
5.4.360.0130.00410.84
5.4.350.0110.00410.80
5.4.340.0090.00510.97
5.4.330.0120.00210.85
5.4.320.0090.00610.83
5.4.310.0100.00510.71
5.4.300.0160.00210.83
5.4.290.0100.00310.89
5.4.280.0070.00710.89
5.4.270.0160.00010.79
5.4.260.0080.00510.75
5.4.250.0120.00510.80
5.4.240.0000.01611.08
5.4.230.0120.00610.68
5.4.220.0140.00510.82
5.4.210.0130.01010.92
5.4.200.0080.01310.77
5.4.190.0100.00511.03
5.4.180.0170.00510.89
5.4.170.0100.00510.79
5.4.160.0150.00811.00
5.4.150.0150.00310.78
5.4.140.0150.00510.76
5.4.130.0130.00710.98
5.4.120.0140.00510.86
5.4.110.0140.00310.86
5.4.100.0190.00310.92
5.4.90.0100.00311.02
5.4.80.0160.00010.88
5.4.70.0160.00910.88
5.4.60.0060.00610.79
5.4.50.0150.00010.90
5.4.40.0130.00511.07
5.4.30.0140.00910.60
5.4.20.0100.00510.98
5.4.10.0170.00310.88
5.4.00.0110.00310.61
5.3.290.0040.01310.41
5.3.280.0090.00310.28
5.3.270.0100.00710.52
5.3.260.0140.00010.37
5.3.250.0150.00510.46
5.3.240.0130.00210.25
5.3.230.0040.01210.45
5.3.220.0000.01410.39
5.3.210.0070.01010.35
5.3.200.0070.00310.40
5.3.190.0110.00610.45
5.3.180.0100.00510.43
5.3.170.0090.00610.32
5.3.160.0080.00310.18
5.3.150.0050.01410.25
5.3.140.0150.00610.43
5.3.130.0150.00410.44
5.3.120.0200.00610.38
5.3.110.0110.00210.41
5.3.100.0060.00610.42
5.3.90.0090.00410.46
5.3.80.0050.00810.17
5.3.70.0120.00410.21
5.3.60.0150.00310.45
5.3.50.0100.00710.27
5.3.40.0130.00010.36
5.3.30.0070.00410.09
5.3.20.0060.00610.15
5.3.10.0070.00710.22
5.3.00.0110.00710.18
5.2.170.0090.0039.95
5.2.160.0100.0059.95
5.2.150.0120.0029.95
5.2.140.0100.0029.95
5.2.130.0040.0079.95
5.2.120.0060.0069.95
5.2.110.0110.0039.95
5.2.100.0050.0109.95
5.2.90.0060.0039.95
5.2.80.0120.0069.95
5.2.70.0000.0119.95
5.2.60.0000.0089.95
5.2.50.0050.0059.95
5.2.40.0040.0069.95
5.2.30.0120.0039.95
5.2.20.0120.0039.95
5.2.10.0130.0059.95
5.2.00.0110.0049.95
5.1.60.0080.0069.95
5.1.50.0100.0009.95
5.1.40.0050.0059.95
5.1.30.0030.0069.95
5.1.20.0050.0059.95
5.1.10.0070.0119.95
5.1.00.0140.0039.95
5.0.50.0060.0049.95
5.0.40.0030.0069.95
5.0.30.0050.0029.95
5.0.20.0060.0039.95
5.0.10.0100.0009.95
5.0.00.0050.0029.95
4.4.90.0050.0009.95
4.4.80.0000.0079.95
4.4.70.0060.0069.95
4.4.60.0060.0069.95
4.4.50.0080.0039.95
4.4.40.0090.0039.95
4.4.30.0060.0029.95
4.4.20.0040.0049.95
4.4.10.0070.0069.95
4.4.00.0000.0089.95
4.3.110.0000.0069.95
4.3.100.0000.0069.95
4.3.90.0070.0079.95
4.3.80.0060.0009.95
4.3.70.0060.0009.95
4.3.60.0000.0109.95
4.3.50.0030.0039.95
4.3.40.0000.0059.95
4.3.30.0050.0009.95
4.3.20.0000.0059.95
4.3.10.0060.0009.95
4.3.00.0050.0009.95

preferences:
59.54 ms | 400 KiB | 5 Q