3v4l.org

run code in 300+ PHP versions simultaneously
<?php // UTF-16 surrogate codepoints have no valid encoding in any UTF form. // https://en.wikipedia.org/wiki/UTF-16#U.2BD800_to_U.2BDFFF $high = "\u{D852}"; $low = "\u{DF62}"; $pair = $high.$low; var_dump( @\iconv('UTF-8', 'UTF-8', $high) === false, @\iconv('UTF-8', 'UTF-8', $low) === false, @\iconv('UTF-8', 'UTF-8', $pair) === false ); /* Should be: * * bool(true) * bool(true) * bool(true) * * On Windows with 7.0 and 7.1 the result is: * bool(false) * bool(false) * bool(false) */

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)
8.4.120.0120.00820.88
8.4.110.0110.00718.57
8.4.100.0080.01317.69
8.4.90.0060.00422.45
8.4.80.0050.00518.74
8.4.70.0070.01418.82
8.4.60.0120.00918.66
8.4.50.0180.00718.84
8.4.40.0200.00019.30
8.4.30.0130.00719.54
8.4.20.0130.00718.34
8.4.10.0070.00319.34
8.3.250.0100.00919.05
8.3.240.0090.00716.81
8.3.230.0140.00516.77
8.3.220.0050.00319.09
8.3.210.0030.00416.69
8.3.200.0040.00416.60
8.3.190.0030.00517.30
8.3.180.0120.00918.59
8.3.170.0150.00316.68
8.3.160.0150.00317.04
8.3.150.0060.00317.20
8.3.140.0060.01219.14
8.3.130.0050.00318.49
8.3.120.0080.00018.72
8.3.110.0080.00320.94
8.3.100.0000.00924.06
8.3.90.0080.00026.77
8.3.80.0060.00317.97
8.3.70.0130.00316.63
8.3.60.0110.01118.68
8.3.50.0120.00521.95
8.3.40.0110.00418.51
8.3.30.0090.00618.76
8.3.20.0040.00419.90
8.3.10.0040.00421.88
8.3.00.0070.00023.53
8.2.290.0150.00418.63
8.2.280.0120.00718.30
8.2.270.0110.00718.35
8.2.260.0040.01116.86
8.2.250.0080.00016.63
8.2.240.0030.01317.23
8.2.230.0060.00322.58
8.2.220.0060.00337.54
8.2.210.0120.00626.77
8.2.200.0110.00018.41
8.2.190.0030.01318.30
8.2.180.0110.00417.00
8.2.170.0070.00722.96
8.2.160.0120.00320.41
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0080.00020.53
8.2.120.0050.00326.35
8.2.110.0070.00420.88
8.2.100.0030.00917.66
8.2.90.0050.00318.94
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0040.00717.93
8.2.50.0040.00419.23
8.2.40.0000.00820.47
8.2.30.0000.00720.45
8.2.20.0000.00717.95
8.2.10.0000.00718.17
8.2.00.0040.00418.15
8.1.330.0110.00816.41
8.1.320.0120.00916.30
8.1.310.0000.00816.57
8.1.300.0030.00618.20
8.1.290.0040.00430.84
8.1.280.0100.00725.92
8.1.270.0050.00324.02
8.1.260.0080.00026.35
8.1.250.0030.00328.09
8.1.240.0060.00319.16
8.1.230.0090.00319.18
8.1.220.0060.00317.79
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0080.00017.23
8.1.180.0030.00518.10
8.1.170.0060.00318.55
8.1.160.0050.00218.88
8.1.150.0040.00420.27
8.1.140.0040.00419.59
8.1.130.0000.00719.02
8.1.120.0070.00017.50
8.1.110.0040.00417.36
8.1.100.0040.00317.45
8.1.90.0030.00517.54
8.1.80.0030.00617.41
8.1.70.0000.00717.36
8.1.60.0040.00417.60
8.1.50.0030.00617.51
8.1.40.0000.00817.52
8.1.30.0000.00817.59
8.1.20.0080.00017.62
8.1.10.0000.00817.46
8.1.00.0000.00817.38
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.37
8.0.270.0040.00417.13
8.0.260.0000.00617.32
8.0.250.0030.00316.99
8.0.240.0000.00717.02
8.0.230.0030.00317.04
8.0.220.0050.00316.93
8.0.210.0000.00816.93
8.0.200.0040.00416.93
8.0.190.0000.00717.01
8.0.180.0000.00716.82
8.0.170.0040.00416.99
8.0.160.0040.00417.05
8.0.150.0000.00716.98
8.0.140.0070.00016.82
8.0.130.0050.00013.39
8.0.120.0030.00617.04
8.0.110.0030.00616.94
8.0.100.0030.00616.98
8.0.90.0000.00917.07
8.0.80.0070.01017.10
8.0.70.0030.00616.93
8.0.60.0060.00316.93
8.0.50.0040.00416.99
8.0.30.0100.01117.36
8.0.20.0110.01217.44
8.0.10.0030.00617.19
8.0.00.0030.01616.95
7.4.330.0050.00015.55
7.4.320.0000.00616.40
7.4.300.0000.00616.51
7.4.290.0010.01116.39
7.4.280.0060.00316.50
7.4.270.0030.00316.59
7.4.260.0100.00016.58
7.4.250.0030.00516.75
7.4.240.0030.00516.77
7.4.230.0000.00816.85
7.4.220.0160.00316.64
7.4.210.0080.00916.73
7.4.200.0060.00316.81
7.4.160.0080.01116.49
7.4.150.0090.01817.40
7.4.140.0140.00717.86
7.4.130.0110.01216.63
7.4.120.0110.01016.61
7.4.110.0080.01216.66
7.4.100.0120.00616.55
7.4.90.0130.00616.60
7.4.80.0140.00519.39
7.4.70.0110.01116.60
7.4.60.0100.01216.57
7.4.50.0080.01116.78
7.4.40.0070.01316.59
7.4.30.0170.00816.55
7.4.20.0070.01316.50
7.4.10.0120.00816.30
7.4.00.0070.01415.80
7.3.330.0000.00513.25
7.3.320.0030.00313.09
7.3.310.0000.00816.44
7.3.300.0040.00416.42
7.3.290.0040.00416.45
7.3.280.0070.01416.45
7.3.270.0190.00617.40
7.3.260.0110.01016.45
7.3.250.0100.01116.51
7.3.240.0130.01216.50
7.3.230.0100.01316.51
7.3.210.0120.00616.59
7.3.200.0060.01316.44
7.3.190.0100.01416.54
7.3.180.0080.01316.50
7.3.170.0110.00816.44
7.3.160.0070.01316.47
7.3.150.0080.01216.45
7.3.140.0060.01516.48
7.3.130.0090.01516.45
7.3.120.0140.01015.60
7.3.110.0120.01015.60
7.3.100.0030.01715.60
7.3.90.0110.00415.78
7.3.80.0060.01215.68
7.3.70.0090.01115.57
7.3.60.0090.00915.74
7.3.50.0110.00815.63
7.3.40.0060.01215.59
7.3.30.0060.01315.50
7.3.20.0120.00816.54
7.3.10.0120.00716.59
7.3.00.0040.01416.64
7.2.330.0090.00916.67
7.2.320.0160.01016.68
7.2.310.0110.00916.75
7.2.300.0150.00916.73
7.2.290.0050.01716.68
7.2.280.0030.01816.77
7.2.270.0140.00716.52
7.2.260.0160.01016.55
7.2.250.0080.01515.87
7.2.240.0060.01715.68
7.2.230.0120.00716.05
7.2.220.0080.00915.78
7.2.210.0020.01815.88
7.2.200.0080.01115.78
7.2.190.0060.01415.84
7.2.180.0050.01415.99
7.2.170.0020.01615.79
7.2.160.0150.01216.64
7.2.150.0080.01316.78
7.2.140.0030.02316.71
7.2.130.0170.00316.67
7.2.120.0090.01216.65
7.2.110.0160.00616.50
7.2.100.0100.01316.45
7.2.90.0160.00916.63
7.2.80.0140.00716.71
7.2.70.0120.00916.48
7.2.60.0100.00916.91
7.2.50.0100.01716.62
7.2.40.0130.00716.65
7.2.30.0190.01016.59
7.2.20.0120.01116.66
7.2.10.0120.01516.74
7.2.00.0120.00618.15
7.1.330.0070.01215.75
7.1.320.0220.01215.64
7.1.310.0060.01215.85
7.1.300.0050.01315.73
7.1.290.0060.01215.65
7.1.280.0100.00715.86
7.1.270.0060.01315.66
7.1.260.0070.01215.74
7.1.250.0120.00915.66
7.1.240.0070.01115.62
7.1.230.0110.00815.64
7.1.220.0090.01515.49
7.1.210.0220.01415.41
7.1.200.0030.01515.88
7.1.190.0110.00815.63
7.1.180.0140.00615.59
7.1.170.0170.00815.58
7.1.160.0100.01015.48
7.1.150.0120.00915.45
7.1.140.0190.00615.58
7.1.130.0150.00915.78
7.1.120.0100.01315.46
7.1.110.0120.01215.69
7.1.100.0050.01316.97
7.1.90.0070.01415.45
7.1.80.0130.01315.60
7.1.70.0080.00816.49
7.1.60.0050.01116.53
7.1.50.0120.01425.19
7.1.40.0150.00815.78
7.1.30.0110.01015.57
7.1.20.0160.04127.91
7.1.10.0110.04118.95
7.1.00.0120.03919.05
7.0.330.0110.00815.12
7.0.320.0070.01315.26
7.0.310.0140.00415.30
7.0.300.0050.01915.39
7.0.290.0070.01715.34
7.0.280.0140.00815.28
7.0.270.0120.01215.29
7.0.260.0080.01115.38
7.0.250.0000.02515.31
7.0.240.0040.01715.52
7.0.230.0110.01115.20
7.0.220.0130.01315.32
7.0.210.0050.01315.35
7.0.200.0060.01216.31
7.0.190.0120.00615.22
7.0.180.0160.00315.35
7.0.170.0090.01615.35
7.0.160.0080.03618.79
7.0.150.0060.03818.66
7.0.140.0110.03118.64
7.0.130.0080.04018.74
7.0.120.0130.03218.75
7.0.110.0060.03818.68
7.0.100.0150.02518.65
7.0.90.0100.04018.73
7.0.80.0020.04318.76
7.0.70.0150.03418.72
7.0.60.0170.02818.73
7.0.50.0150.04218.62
7.0.40.0090.04918.75
7.0.30.0150.03618.75
7.0.20.0070.04718.67
7.0.10.0030.04218.64
7.0.00.0060.04518.68
5.6.400.0140.01015.93
5.6.390.0060.01415.71
5.6.380.0060.01716.10
5.6.370.0140.00916.11
5.6.360.0190.00916.18
5.6.350.0070.01815.77
5.6.340.0070.02115.77
5.6.330.0030.02315.73
5.6.320.0110.01915.69
5.6.310.0100.01816.09
5.6.300.0130.01615.89
5.6.290.0100.01616.05
5.6.280.0110.01315.83
5.6.270.0130.01615.89
5.6.260.0140.00715.85
5.6.250.0090.01115.97
5.6.240.0100.01016.06
5.6.230.0060.01516.06
5.6.220.0150.01215.81
5.6.210.0090.02115.88
5.6.200.0130.01315.91
5.6.190.0100.01316.00
5.6.180.0060.01515.85
5.6.170.0090.01216.07
5.6.160.0000.02115.86
5.6.150.0150.00615.86
5.6.140.0150.01016.04
5.6.130.0130.00716.13
5.6.120.0120.00815.91
5.6.110.0070.01715.84
5.6.100.0090.01316.03
5.6.90.0120.00915.90
5.6.80.0030.01915.88
5.6.70.0110.01116.02
5.6.60.0120.00916.00
5.6.50.0070.01415.83
5.6.40.0120.01215.95
5.6.30.0060.01715.92
5.6.20.0060.01915.73
5.6.10.0110.01115.88
5.6.00.0100.01315.98

preferences:
32.54 ms | 403 KiB | 5 Q