3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 0xe4b8ad; echo $bin = pack("a3", "中");//中 echo "十六进制: 0x" . bin2hex($bin) . "\n";//0xe4b8ad $str = '回'; echo $bin = pack("C3", ord($str{0}), ord($str{1}), ord($str{2}));//回 $hex = strtoupper(bin2hex($bin)); echo "UTF-8编码: " . $hex . "\n";

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)
8.3.60.0100.01018.55
8.3.50.0080.00821.02
8.3.40.0110.00718.64
8.3.30.0070.00718.83
8.3.20.0040.00420.21
8.3.10.0080.00021.94
8.3.00.0030.00522.41
8.2.180.0100.01016.38
8.2.170.0110.00322.96
8.2.160.0110.00319.04
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0030.01026.16
8.2.120.0040.00419.11
8.2.110.0030.00620.26
8.2.100.0080.00317.78
8.2.90.0080.00018.97
8.2.80.0000.00817.97
8.2.70.0030.00617.38
8.2.60.0070.00017.80
8.2.50.0060.00318.10
8.2.40.0030.00518.22
8.2.30.0080.00017.98
8.2.20.0000.00717.57
8.2.10.0000.00917.54
8.2.00.0070.00017.45
8.1.280.0070.01025.92
8.1.270.0080.00022.14
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.98
8.1.230.0090.00020.32
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00617.22
8.1.190.0000.00817.23
8.1.180.0080.00018.10
8.1.170.0000.00818.59
8.1.160.0000.00822.11
8.1.150.0040.00418.57
8.1.140.0000.00817.36
8.1.130.0070.00017.30
8.1.120.0030.00417.25
8.1.110.0000.00817.30
8.1.100.0030.00417.36
8.1.90.0040.00417.38
8.1.80.0040.00417.21
8.1.70.0030.00317.34
8.1.60.0040.00417.42
8.1.50.0040.00417.41
8.1.40.0000.00717.30
8.1.30.0040.00417.38
8.1.20.0080.00017.37
8.1.10.0040.00417.42
8.1.00.0000.00817.34
8.0.300.0000.00818.77
8.0.290.0060.00316.63
8.0.280.0070.00018.22
8.0.270.0000.00717.12
8.0.260.0000.00816.70
8.0.250.0000.00716.86
8.0.240.0000.00816.89
8.0.230.0050.00316.86
8.0.220.0040.00416.79
8.0.210.0070.00016.85
8.0.200.0030.00316.77
8.0.190.0030.00416.81
8.0.180.0000.00716.86
8.0.170.0040.00416.74
8.0.160.0070.00016.72
8.0.150.0040.00416.75
8.0.140.0030.00416.79
8.0.130.0000.00513.21
8.0.120.0040.00416.72
8.0.110.0070.00016.77
8.0.100.0070.00016.71
8.0.90.0000.00716.77
8.0.80.0110.00316.86
8.0.70.0040.00416.81
8.0.60.0000.00816.94
8.0.50.0080.00016.86
8.0.30.0120.00716.93
8.0.20.0080.01117.40
8.0.10.0060.00316.82
8.0.00.0130.00916.66
7.4.330.0020.00215.00
7.4.320.0060.00016.53
7.4.300.0060.00016.46
7.4.290.0040.00416.54
7.4.280.0030.00316.59
7.4.270.0030.00616.55
7.4.260.0030.00316.34
7.4.250.0040.00416.48
7.4.240.0060.00116.50
7.4.230.0000.00716.44
7.4.220.0090.00916.58
7.4.210.0100.00816.56
7.4.200.0000.00716.27
7.4.190.0050.00216.38
7.4.160.0080.00816.64
7.4.150.0140.00317.40
7.4.140.0080.00917.86
7.4.130.0100.00916.58
7.4.120.0100.00716.44
7.4.110.0110.01116.40
7.4.100.0120.00616.65
7.4.90.0110.00716.61
7.4.80.0060.01619.39
7.4.70.0060.00916.65
7.4.60.0090.00916.63
7.4.50.0050.00316.38
7.4.40.0030.01322.77
7.4.30.0040.01216.60
7.4.00.0070.00715.21
7.3.330.0050.00013.08
7.3.320.0030.00313.29
7.3.310.0000.00716.25
7.3.300.0060.00016.34
7.3.290.0050.00816.31
7.3.280.0090.00816.28
7.3.270.0130.00317.40
7.3.260.0110.00716.41
7.3.250.0080.00916.42
7.3.240.0100.00616.54
7.3.230.0070.01016.40
7.3.210.0070.01016.34
7.3.200.0070.01019.39
7.3.190.0100.01316.52
7.3.180.0060.01116.55
7.3.170.0070.01016.52
7.3.160.0040.01216.54
7.3.120.0030.01214.99
7.3.10.0000.01116.30
7.3.00.0060.00316.37
7.2.330.0090.00916.54
7.2.320.0140.00216.39
7.2.310.0070.01016.72
7.2.300.0060.00916.49
7.2.290.0100.00616.85
7.2.130.0140.00416.63
7.2.120.0090.00916.82
7.2.110.0140.00316.71
7.2.100.0070.00716.73
7.2.90.0110.00316.59
7.2.80.0070.01016.70
7.2.70.0090.00616.59
7.2.60.0100.01016.73
7.2.50.0070.01116.80
7.2.40.0160.00616.88
7.2.30.0150.00616.88
7.2.20.0070.00716.75
7.2.10.0080.00416.63
7.2.00.0060.00617.00
7.1.250.0060.00915.67
7.1.70.0100.00317.05
7.1.60.0110.01419.82
7.1.50.0030.00717.12
7.1.00.0070.06022.27
7.0.200.0000.00716.94
7.0.140.0000.07722.22
7.0.60.0070.08019.98
7.0.50.0100.07017.90
7.0.40.0030.04320.20
7.0.30.0370.07720.06
7.0.20.0400.07020.18
7.0.10.0200.04020.13
7.0.00.0100.03720.09
5.6.280.0070.09021.10
5.6.210.0170.07020.75
5.6.200.0100.08018.16
5.6.190.0070.05320.41
5.6.180.4170.03720.49
5.6.170.0400.07020.45
5.6.160.0130.06320.71
5.6.150.0070.03718.15
5.6.140.0030.04718.18
5.6.130.0130.04018.18
5.6.120.0170.07320.96
5.6.110.0030.04021.07
5.6.100.0070.05721.07
5.6.90.0030.04320.97
5.6.80.0030.07720.52
5.6.70.0230.04720.41
5.5.350.0100.08320.33
5.5.340.0100.06717.96
5.5.330.0130.08020.19
5.5.320.0230.07320.34
5.5.310.0300.04720.24
5.5.300.0070.06717.92
5.5.290.0100.06017.98
5.5.280.0030.05720.88
5.5.270.0100.08320.94
5.5.260.0030.04320.76
5.5.250.0070.05720.66
5.5.240.0100.05720.15
5.4.450.0570.05719.64
5.4.440.0700.04319.45
5.4.430.0070.06319.32
5.4.420.0730.05319.09
5.4.410.0770.05019.41
5.4.400.1170.05318.51
5.4.390.1500.05718.67
5.4.380.0230.06718.50
5.4.370.0070.05718.62
5.4.360.0170.04718.63
5.4.350.0070.06318.74
5.4.340.0130.05318.57
5.4.320.0090.03412.46
5.4.310.0060.03612.45
5.4.300.0070.04212.45
5.4.290.0050.04212.45
5.4.280.0060.03512.35
5.4.270.0090.03212.35
5.4.260.0070.05718.74
5.4.250.0170.04718.66
5.4.240.0000.07718.77
5.4.230.0130.07318.97
5.4.220.0270.05718.73
5.4.210.0070.05718.97
5.4.200.0200.06718.84
5.4.190.0200.05318.78
5.4.180.0070.07318.66
5.4.170.0100.07018.72
5.4.160.0130.05018.81
5.4.150.0070.07018.86
5.4.140.0000.06316.27
5.4.130.0200.05016.40
5.4.120.0070.07316.25
5.4.110.0070.05316.49
5.4.100.0070.05316.39
5.4.90.0130.05316.29
5.4.80.0130.07316.36
5.4.70.0200.05316.44
5.4.60.0170.04716.38
5.4.50.0200.03716.14
5.4.40.0100.06316.48
5.4.30.0170.05316.18
5.4.20.0030.06016.35
5.4.10.0100.07316.30
5.4.00.0070.05315.93
5.3.290.0090.03512.80
5.3.280.0030.06714.60
5.3.270.0030.06014.75
5.3.260.0070.06314.49
5.3.250.0070.06314.75
5.3.240.0070.06314.75
5.3.230.0100.05014.60
5.3.220.0130.04714.56
5.3.210.0030.06014.45
5.3.200.0100.05014.57
5.3.190.0070.05314.58
5.3.180.0070.05714.65
5.3.170.0100.05714.58
5.3.160.0130.07014.61
5.3.150.0200.05014.26
5.3.140.0170.04314.55
5.3.130.0070.06314.57
5.3.120.0130.05014.41
5.3.110.0100.05314.40
5.3.100.0130.04714.19
5.3.90.0100.04713.85
5.3.80.0130.07014.02
5.3.70.0130.04314.02
5.3.60.0100.06313.88
5.3.50.0130.04313.94
5.3.40.0100.04713.71
5.3.30.0130.05013.85
5.3.20.0030.05313.63
5.3.10.0170.06313.70
5.3.00.0070.06013.41
5.2.170.0070.04311.06
5.2.160.0100.04710.90
5.2.150.0030.04711.06
5.2.140.0070.04010.90
5.2.130.0000.04310.93
5.2.120.0200.03310.98
5.2.110.0070.04010.93
5.2.100.0030.05010.93
5.2.90.0170.04011.03
5.2.80.0070.04711.01
5.2.70.0030.04310.98
5.2.60.0070.04010.94
5.2.50.0030.04711.01
5.2.40.0130.03311.02
5.2.30.0100.04710.96
5.2.20.0170.03010.97
5.2.10.0100.04010.84
5.2.00.0070.04010.69
5.1.60.0030.05010.08
5.1.50.0030.03710.07
5.1.40.0000.04710.07
5.1.30.0070.05010.41
5.1.20.0030.04310.56
5.1.10.0070.05010.15
5.1.00.0000.04010.16
5.0.50.0100.0238.60
5.0.40.0030.0378.39
5.0.30.0030.0438.21
5.0.20.0030.0278.18
5.0.10.0070.0378.23
5.0.00.0070.0378.39
4.4.90.0030.0207.19
4.4.80.0030.0207.19
4.4.70.0070.0207.19
4.4.60.0070.0207.19
4.4.50.0070.0177.19
4.4.40.0000.0437.19
4.4.30.0100.0207.19
4.4.20.0070.0277.19
4.4.10.0000.0277.19
4.4.00.0000.0377.19
4.3.110.0030.0207.19
4.3.100.0100.0237.19
4.3.90.0030.0307.19
4.3.80.0030.0407.19
4.3.70.0030.0207.19
4.3.60.0030.0207.19
4.3.50.0130.0137.19
4.3.40.0030.0337.19
4.3.30.0030.0307.19
4.3.20.0070.0207.19
4.3.10.0000.0237.19
4.3.00.0030.0206.80

preferences:
86.43 ms | 401 KiB | 5 Q