3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding('UTF-8'); $value = 'g' . chr(0xa4) .'eld'; $orignalValue = $value; mb_substitute_character('entity'); $value = mb_convert_encoding($value, 'UTF-8'); if (mb_strlen($value, 'UTF-8') < mb_strlen($orignalValue) || preg_match('|[^\x09\x0A\x0D\x20-\xD77F\xE000-\xFFFD]|e', $value)) { // value not ISO-8859-15 or UTF8 $value = base64_encode($orignalValue); } var_dump($value);

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)
8.3.60.0170.00318.27
8.3.50.0110.00721.93
8.3.40.0110.00418.83
8.3.30.0140.00018.96
8.3.20.0080.00020.13
8.3.10.0040.00422.13
8.3.00.0040.00422.58
8.2.180.0070.01416.88
8.2.170.0030.01022.96
8.2.160.0170.00320.94
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0080.00020.64
8.2.110.0060.00320.54
8.2.100.0040.00817.78
8.2.90.0040.00419.16
8.2.80.0050.00417.97
8.2.70.0000.00817.63
8.2.60.0030.00617.80
8.2.50.0000.00918.07
8.2.40.0040.00418.09
8.2.30.0000.00718.11
8.2.20.0040.00417.72
8.2.10.0030.00617.63
8.2.00.0050.00317.68
8.1.280.0070.01325.92
8.1.270.0050.00323.97
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0070.01121.06
8.1.230.0060.00617.52
8.1.220.0080.00017.78
8.1.210.0030.00518.77
8.1.200.0000.01017.36
8.1.190.0070.00017.54
8.1.180.0040.00418.10
8.1.170.0060.00318.71
8.1.160.0000.00821.96
8.1.150.0030.00618.65
8.1.140.0070.00017.50
8.1.130.0000.00717.89
8.1.120.0000.00717.49
8.1.110.0070.00017.42
8.1.100.0040.00417.50
8.1.90.0090.00017.48
8.1.80.0000.00717.58
8.1.70.0030.00317.48
8.1.60.0000.00817.65
8.1.50.0030.00617.61
8.1.40.0090.00017.57
8.1.30.0060.00317.66
8.1.20.0030.00517.71
8.1.10.0070.00017.51
8.1.00.0000.00717.47
8.0.300.0080.00018.77
8.0.290.0000.00816.75
8.0.280.0000.00818.62
8.0.270.0000.00717.38
8.0.260.0000.00816.84
8.0.250.0000.00716.99
8.0.240.0000.01017.02
8.0.230.0000.00717.13
8.0.220.0070.00016.92
8.0.210.0000.00716.95
8.0.200.0060.00017.09
8.0.190.0000.00717.07
8.0.180.0040.00417.06
8.0.170.0030.00616.97
8.0.160.0040.00417.07
8.0.150.0040.00416.93
8.0.140.0030.00316.87
8.0.130.0060.00013.34
8.0.120.0030.00517.03
8.0.110.0050.00216.89
8.0.100.0030.00516.97
8.0.90.0000.00716.98
8.0.80.0100.01016.96
8.0.70.0050.00216.86
8.0.60.0020.00516.91
8.0.50.0000.00716.91
8.0.30.0150.01117.19
8.0.20.0130.00717.40
8.0.10.0000.00717.10
8.0.00.0150.01016.81
7.4.330.0050.00015.14
7.4.320.0030.00316.66
7.4.300.0060.00016.56
7.4.290.0000.00816.64
7.4.280.0000.00716.51
7.4.270.0070.00016.50
7.4.260.0080.00016.57
7.4.250.0040.00416.66
7.4.240.0050.00216.60
7.4.230.0040.00416.55
7.4.220.0130.01016.70
7.4.210.0120.00516.64
7.4.200.0000.00716.60
7.4.190.0000.00716.53
7.4.160.0160.00016.48
7.4.150.0130.00317.40
7.4.140.0080.01017.86
7.4.130.0090.01116.51
7.4.120.0130.00516.60
7.4.110.0150.00316.62
7.4.100.0120.00616.50
7.4.90.0130.00616.54
7.4.80.0130.00716.62
7.4.70.0060.01016.57
7.4.60.0090.00916.60
7.4.50.0030.00316.50
7.4.40.0080.00822.77
7.4.30.0100.00616.46
7.4.00.0110.00414.81
7.3.330.0030.00313.33
7.3.320.0030.00313.11
7.3.310.0030.00316.27
7.3.300.0040.00416.38
7.3.290.0060.00916.44
7.3.280.0100.00616.42
7.3.270.0110.00617.40
7.3.260.0100.01416.38
7.3.250.0100.00716.38
7.3.240.0120.00616.38
7.3.230.0230.00016.63
7.3.210.0110.00716.42
7.3.200.0040.01719.39
7.3.190.0160.00016.43
7.3.180.0070.01016.50
7.3.170.0090.00916.46
7.3.160.0150.00316.49
7.3.120.0040.01114.86
7.2.330.0040.01416.74
7.2.320.0120.00616.75
7.2.310.0110.00816.74
7.2.300.0110.00616.66
7.2.290.0130.00316.84
7.1.70.0030.00316.94
7.1.60.0100.01019.82
7.1.50.0080.01117.14
7.1.00.0030.07722.29
7.0.200.0130.00016.97
7.0.140.0070.07022.21
7.0.60.0200.05720.01
7.0.50.0000.04317.83
7.0.40.0130.07720.32
7.0.30.0370.07020.18
7.0.20.0300.07720.04
7.0.10.0070.09020.14
7.0.00.0070.07320.00
5.6.280.0070.07020.78
5.6.210.0030.08720.64
5.6.200.0130.08018.11
5.6.190.0070.04020.42
5.6.180.0500.06320.27
5.6.170.0270.04720.45
5.6.160.0070.07720.61
5.6.150.0030.04018.21
5.6.140.0000.08318.23
5.6.130.0100.07018.07
5.6.120.0230.06720.97
5.6.110.0170.08021.09
5.6.100.0070.03720.88
5.6.90.0130.08021.00
5.6.80.0170.07020.28
5.5.350.0170.03320.43
5.5.340.0030.08017.98
5.5.330.0070.04320.14
5.5.320.0400.03320.28
5.5.310.0470.06320.29
5.5.300.0130.07317.91
5.5.290.0070.08318.01
5.5.280.0100.08020.96
5.5.270.0070.08720.78
5.5.260.0070.08720.64
5.5.250.0100.03720.68
5.5.240.0070.02720.16
5.4.450.1770.04019.42
5.4.440.1630.03719.38
5.4.430.0300.05019.54
5.4.420.0170.05719.22
5.4.410.0300.03719.08
5.4.400.1570.03318.92
5.4.390.1570.03318.91
5.4.380.1570.03319.24
5.4.370.1470.04319.09
5.4.360.1830.03719.22
5.4.350.1500.03718.74
5.4.340.1500.03719.25
5.4.320.1770.04319.07
5.4.310.1630.04318.91
5.4.300.1800.04319.09
5.4.290.1730.05018.80
5.4.280.1270.04719.09
5.4.270.0070.07719.13
5.4.260.0130.06719.13
5.4.250.1400.04318.91
5.4.240.1570.04019.05
5.4.230.1530.04019.08
5.4.220.1500.04319.07
5.4.210.1870.04319.08
5.4.200.1500.04019.15
5.4.190.1530.03719.05
5.4.180.1500.04019.06
5.4.170.1700.05019.20
5.4.160.1570.03719.19
5.4.150.1530.03718.79
5.4.140.1170.04016.45
5.4.130.0100.03716.21
5.4.120.0070.07016.32
5.4.110.1130.05016.34
5.4.100.1600.04016.45
5.4.90.1900.04016.39
5.4.80.1770.04016.29
5.4.70.1600.03316.41
5.4.60.1630.03716.42
5.4.50.1630.03716.41
5.4.40.1670.03016.41
5.4.30.1700.04016.31
5.4.20.1600.03316.04
5.4.10.1830.04316.37
5.4.00.1170.03315.73
5.3.290.0070.04314.60
5.3.280.0000.05014.50
5.3.270.0700.03714.59
5.3.260.1600.03314.51
5.3.250.1600.03014.45
5.3.240.1730.04314.45
5.3.230.1600.03314.53
5.3.220.1630.04714.54
5.3.210.1830.04314.50
5.3.200.1670.03314.42
5.3.190.1130.04014.51
5.3.180.0070.04314.66
5.3.170.0030.03714.48
5.3.160.0000.04314.51
5.3.150.1330.03714.40
5.3.140.1530.03714.64
5.3.130.1470.04014.39
5.3.120.0000.04014.64
5.3.110.0030.04014.39
5.3.100.0670.04014.08
5.3.90.1730.04713.89
5.3.80.1500.03713.89
5.3.70.1630.04714.06
5.3.60.1770.04313.88
5.3.50.1630.03713.89
5.3.40.1370.04013.89
5.3.30.1530.04313.69
5.3.20.1330.04313.64
5.3.10.1300.04713.48
5.3.00.1570.03713.50
5.2.170.1170.04311.20
5.2.160.1130.03011.19
5.2.150.1470.03011.23
5.2.140.1370.03310.98
5.2.130.1370.03011.12
5.2.120.1330.04311.11
5.2.110.1300.03711.02
5.2.100.1270.03010.96
5.2.90.1200.02310.95
5.2.80.1400.04010.93
5.2.70.1100.03310.93
5.2.60.1400.03010.91
5.2.50.1200.04311.03
5.2.40.0900.02710.83
5.2.30.1070.04310.89
5.2.20.1000.03710.97
5.2.10.1100.04010.82
5.2.00.1100.03710.57
5.1.60.0900.03710.15
5.1.50.1030.03310.08
5.1.40.1030.03310.07
5.1.30.0930.02310.24
5.1.20.0870.03010.32
5.1.10.0970.03010.07
5.1.00.0870.03010.07
5.0.50.0430.02010.07
5.0.40.0530.02310.07
5.0.30.0630.05310.07
5.0.20.0430.02010.07
5.0.10.0500.02010.07
5.0.00.0570.03010.07
4.4.90.0500.02010.07
4.4.80.0570.01310.07
4.4.70.0430.01310.07
4.4.60.0500.01710.07
4.4.50.0530.01310.07
4.4.40.0570.02310.07
4.4.30.0400.01710.07
4.4.20.0600.02010.07
4.4.10.0470.01710.07
4.4.00.0570.03010.07
4.3.110.0000.02310.07
4.3.100.0000.01710.07
4.3.90.0000.01310.07
4.3.80.0070.02010.07
4.3.70.0000.01710.07
4.3.60.0000.01710.07
4.3.50.0000.01710.07
4.3.40.0130.02310.07
4.3.30.0070.02010.07
4.3.20.0200.01710.07
4.3.10.0230.01710.07
4.3.00.0230.01710.07

preferences:
52.3 ms | 400 KiB | 5 Q