3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = ""; echo "\0"; for ($t=0; $t<128; $t++) $result .= chr($t); echo "strlen = ".strlen($result)."\n"; echo "Result = ".$result."\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)
8.3.40.0120.00318.97
8.3.30.0120.00919.27
8.3.20.0040.00420.13
8.3.10.0040.00422.11
8.3.00.0000.00722.52
8.2.170.0120.00322.96
8.2.160.0150.00019.02
8.2.150.0090.00024.18
8.2.140.0030.00624.66
8.2.130.0090.00626.16
8.2.120.0040.00419.48
8.2.110.0030.00722.10
8.2.100.0110.00017.72
8.2.90.0000.00918.03
8.2.80.0040.00417.97
8.2.70.0050.00317.75
8.2.60.0000.01017.89
8.2.50.0000.00818.07
8.2.40.0040.00418.04
8.2.30.0040.00418.05
8.2.20.0040.00417.71
8.2.10.0030.00519.51
8.2.00.0090.00019.52
8.1.270.0000.00822.02
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0100.00722.51
8.1.230.0030.00920.97
8.1.220.0000.00817.74
8.1.210.0030.00518.78
8.1.200.0040.00417.35
8.1.190.0040.00417.41
8.1.180.0000.00818.77
8.1.170.0040.00418.39
8.1.160.0050.00222.01
8.1.150.0050.00318.52
8.1.140.0000.00717.38
8.1.130.0000.00717.88
8.1.120.0030.00517.48
8.1.110.0040.00417.36
8.1.100.0070.00017.34
8.1.90.0000.00717.46
8.1.80.0040.00417.44
8.1.70.0070.00017.33
8.1.60.0030.00617.46
8.1.50.0000.00717.44
8.1.40.0050.00317.58
8.1.30.0000.00817.67
8.1.20.0030.00517.70
8.1.10.0040.00417.51
8.1.00.0070.00017.45
8.0.300.0000.00720.02
8.0.290.0030.00317.05
8.0.280.0080.00018.35
8.0.270.0070.00017.23
8.0.260.0040.00416.82
8.0.250.0040.00416.86
8.0.240.0030.00316.93
8.0.230.0020.00516.96
8.0.220.0030.00316.87
8.0.210.0000.00716.83
8.0.200.0000.00816.99
8.0.190.0030.00616.91
8.0.180.0040.00416.85
8.0.170.0050.00316.85
8.0.160.0040.00416.99
8.0.150.0040.00416.80
8.0.140.0000.00716.77
8.0.130.0050.00013.39
8.0.120.0080.00016.75
8.0.110.0030.00316.90
8.0.100.0050.00316.91
8.0.90.0050.00216.93
8.0.80.0100.00716.89
8.0.70.0030.00516.94
8.0.60.0050.00216.95
8.0.50.0070.00016.88
8.0.30.0080.01317.09
8.0.20.0090.00917.40
8.0.10.0050.00317.02
8.0.00.0070.01016.68
7.4.330.0060.00015.04
7.4.320.0060.00016.55
7.4.300.0000.00716.43
7.4.290.0070.00016.35
7.4.280.0050.00216.54
7.4.270.0030.00316.45
7.4.260.0030.00516.50
7.4.250.0070.00016.39
7.4.240.0020.00516.57
7.4.230.0080.00016.64
7.4.220.0060.01316.64
7.4.210.0060.00916.52
7.4.200.0040.00416.51
7.4.190.0030.00316.59
7.4.160.0080.00816.52
7.4.150.0080.00817.40
7.4.140.0120.01017.86
7.4.130.0100.01016.52
7.4.120.0100.00816.55
7.4.110.0110.00816.51
7.4.100.0090.00816.41
7.4.90.0130.00916.44
7.4.80.0070.01319.39
7.4.70.0100.00616.49
7.4.60.0060.00916.54
7.4.50.0040.00416.30
7.4.40.0060.00922.77
7.4.30.0080.00816.43
7.4.10.0040.01414.95
7.4.00.0140.00214.99
7.3.330.0050.00013.11
7.3.320.0030.00313.17
7.3.310.0030.00316.27
7.3.300.0070.00016.37
7.3.290.0040.01116.38
7.3.280.0060.01116.32
7.3.270.0170.00017.40
7.3.260.0130.00716.53
7.3.250.0090.00916.36
7.3.240.0160.00416.42
7.3.230.0070.01316.39
7.3.210.0100.00716.51
7.3.200.0150.00319.39
7.3.190.0140.00816.20
7.3.180.0060.00916.21
7.3.170.0120.00416.27
7.3.160.0080.00816.52
7.3.130.0090.00914.54
7.3.120.0070.01014.77
7.3.110.0090.00614.79
7.3.100.0000.01614.57
7.3.90.0030.01414.81
7.3.80.0060.00314.79
7.3.70.0000.01514.68
7.3.60.0040.01114.98
7.3.50.0060.00314.90
7.3.40.0090.00314.90
7.3.30.0080.00414.82
7.3.20.0060.00916.71
7.3.10.0060.00916.67
7.3.00.0090.00516.42
7.2.330.0120.00616.32
7.2.320.0090.00916.71
7.2.310.0080.00816.69
7.2.300.0060.01716.78
7.2.290.0140.00316.69
7.2.260.0130.00314.65
7.2.250.0070.01115.15
7.2.240.0070.00714.99
7.2.230.0040.01114.83
7.2.220.0060.00915.35
7.2.210.0060.00614.89
7.2.200.0160.00014.88
7.2.190.0000.00915.11
7.2.180.0070.00715.03
7.2.170.0080.00815.24
7.2.160.0030.00715.01
7.2.150.0060.00916.93
7.2.140.0100.00016.73
7.2.130.0090.00916.94
7.2.120.0120.00616.73
7.2.110.0120.00316.68
7.2.100.0080.00916.69
7.2.90.0060.00816.59
7.2.80.0050.01016.63
7.2.70.0100.00816.48
7.2.60.0120.00416.76
7.2.50.0060.00816.73
7.2.40.0090.00516.72
7.2.30.0110.01016.79
7.2.20.0090.00916.81
7.2.10.0110.00716.63
7.2.00.0090.00616.91
7.1.330.0060.00915.75
7.1.320.0030.01015.73
7.1.310.0110.00315.90
7.1.300.0040.00715.70
7.1.290.0070.00416.02
7.1.280.0030.01015.62
7.1.270.0120.00315.70
7.1.260.0060.00615.79
7.1.250.0060.01015.67
7.1.240.0040.00815.83
7.1.230.0080.00615.92
7.1.220.0030.00715.81
7.1.210.0070.00715.82
7.1.200.0030.00515.87
7.1.190.0070.00715.87
7.1.180.0060.00715.68
7.1.170.0060.00915.79
7.1.160.0070.00715.96
7.1.150.0090.00915.84
7.1.140.0080.00315.54
7.1.130.0120.00315.66
7.1.120.0100.00315.58
7.1.110.0100.00315.54
7.1.100.0000.01315.86
7.1.90.0100.00315.86
7.1.80.0090.00315.66
7.1.70.0020.00816.55
7.1.60.0080.01117.86
7.1.50.0070.00616.41
7.1.40.0030.00915.60
7.1.30.0030.01015.96
7.1.20.0070.01115.60
7.1.10.0100.00315.53
7.1.00.0030.04319.15
7.0.330.0000.01215.48
7.0.320.0000.01415.48
7.0.310.0050.00315.19
7.0.300.0040.00715.32
7.0.290.0070.00715.17
7.0.280.0090.00915.34
7.0.270.0060.00915.21
7.0.260.0030.00715.48
7.0.250.0000.00815.24
7.0.240.0070.00715.43
7.0.230.0070.00315.43
7.0.220.0060.00615.53
7.0.210.0080.00315.58
7.0.200.0030.01015.97
7.0.190.0060.01015.58
7.0.180.0030.01215.49
7.0.170.0090.00315.63
7.0.160.0040.00915.52
7.0.150.0100.00315.34
7.0.140.0070.03718.80
7.0.130.0040.00815.45
7.0.120.0040.00415.21
7.0.110.0040.00815.30
7.0.100.0120.00315.60
7.0.90.0100.00615.56
7.0.80.0060.00915.24
7.0.70.0070.00715.45
7.0.60.0080.02317.66
7.0.50.0080.04016.72
7.0.40.0030.04916.95
7.0.30.0140.03316.65
7.0.20.0150.02916.78
7.0.10.0150.04316.71
7.0.00.0070.04816.78
5.6.400.0000.01014.60
5.6.390.0040.01114.08
5.6.380.0090.00614.38
5.6.370.0070.01014.32
5.6.360.0030.00714.60
5.6.350.0040.01514.52
5.6.340.0070.01114.73
5.6.330.0120.00314.32
5.6.320.0110.00014.55
5.6.310.0060.00914.37
5.6.300.0090.00614.43
5.6.290.0070.00314.54
5.6.280.0040.04217.71
5.6.270.0100.00314.29
5.6.260.0000.01414.28
5.6.250.0070.00714.54
5.6.240.0060.00914.64
5.6.230.0090.00314.45
5.6.220.0100.00314.33
5.6.210.0070.02217.56
5.6.200.0080.04216.24
5.6.190.0030.02717.45
5.6.180.1480.02317.34
5.6.170.0150.04117.32
5.6.160.0040.03217.49
5.6.150.0030.02516.35
5.6.140.0110.03516.22
5.6.130.0070.04716.24
5.6.120.0080.04517.75
5.6.110.0120.04517.68
5.6.100.0160.03517.63
5.6.90.0060.04717.65
5.6.80.0090.04217.48
5.6.70.0190.02517.28
5.6.60.0080.00614.34
5.6.50.0110.00414.35
5.6.40.0030.00714.33
5.6.30.0070.00714.47
5.6.20.0090.00314.43
5.6.10.0000.00814.67
5.6.00.0040.00814.33
5.5.380.0000.00814.33
5.5.370.0070.00314.55
5.5.360.0040.01114.17
5.5.350.0040.04217.50
5.5.340.0050.04716.21
5.5.330.0080.03517.27
5.5.320.0140.01817.32
5.5.310.0120.03517.52
5.5.300.0070.04216.01
5.5.290.0100.04216.20
5.5.280.0100.04217.63
5.5.270.0090.02817.58
5.5.260.0070.03017.60
5.5.250.0120.03417.45
5.5.240.0080.04017.09
5.5.230.0080.00014.47
5.5.220.0070.00714.45
5.5.210.0000.00814.08
5.5.200.0060.00614.16
5.5.190.0030.00714.00
5.5.180.0070.00714.39
5.5.170.0000.00814.22
5.5.160.0000.01313.98
5.5.150.0040.00814.46
5.5.140.0000.01314.23
5.5.130.0070.00714.47
5.5.120.0030.00614.09
5.5.110.0030.00614.30
5.5.100.0110.00314.16
5.5.90.0040.01214.29
5.5.80.0090.00314.37
5.5.70.0040.00414.42
5.5.60.0000.00814.08
5.5.50.0040.00414.29
5.5.40.0090.00314.42
5.5.30.0070.00714.08
5.5.20.0060.00613.86
5.5.10.0040.01114.07
5.5.00.0000.01414.13
5.4.450.0270.03215.92
5.4.440.0340.02615.99
5.4.430.0080.02716.09
5.4.420.0100.03815.98
5.4.410.0070.02716.04
5.4.400.0420.00415.63
5.4.390.0500.00515.51
5.4.380.0180.02515.61
5.4.370.0030.03715.56
5.4.360.0100.03115.50
5.4.350.0210.02815.64
5.4.340.0100.03015.55
5.4.330.0060.00312.51
5.4.320.0080.02412.48
5.4.310.0070.02012.48
5.4.300.0080.02112.48
5.4.290.0050.02312.48
5.4.280.0070.01712.43
5.4.270.0070.03015.75
5.4.260.0050.04015.71
5.4.250.0070.02815.75
5.4.240.0100.03515.70
5.4.230.0100.02715.73
5.4.220.0100.02715.70
5.4.210.0090.03515.73
5.4.200.0030.03015.58
5.4.190.0070.03815.64
5.4.180.0070.03515.67
5.4.170.0050.03815.67
5.4.160.0090.02715.72
5.4.150.0060.03315.58
5.4.140.0060.03014.50
5.4.130.0030.02814.35
5.4.120.0080.03614.48
5.4.110.0170.02314.36
5.4.100.0070.02714.45
5.4.90.0070.03214.43
5.4.80.0100.03114.36
5.4.70.0080.02814.46
5.4.60.0030.03314.36
5.4.50.0180.02614.39
5.4.40.0090.02514.38
5.4.30.0100.03314.32
5.4.20.0090.02514.35
5.4.10.0090.02814.38
5.4.00.0060.02814.17
5.3.290.0050.02412.66
5.3.280.0070.03013.56
5.3.270.0080.03213.44
5.3.260.0100.02713.51
5.3.250.0030.03113.60
5.3.240.0050.03513.49
5.3.230.0120.02613.58
5.3.220.0090.02713.58
5.3.210.0110.02513.61
5.3.200.0110.03313.54
5.3.190.0100.02513.54
5.3.180.0100.03413.58
5.3.170.0070.02813.49
5.3.160.0100.03813.38
5.3.150.0050.03213.61
5.3.140.0120.03013.53
5.3.130.0090.03413.52
5.3.120.0130.03413.46
5.3.110.0080.03913.41
5.3.100.0120.03213.27
5.3.90.0120.03413.11
5.3.80.0030.03113.27
5.3.70.0070.03513.19
5.3.60.0030.03413.22
5.3.50.0030.03213.22
5.3.40.0050.03013.19
5.3.30.0080.02513.06
5.3.20.0050.03113.07
5.3.10.0050.02512.96
5.3.00.0050.03113.01
5.2.170.0000.04711.16
5.2.160.0030.04711.25
5.2.150.0000.05311.14
5.2.140.0030.06011.02
5.2.130.0000.04311.11
5.2.120.0030.04010.88
5.2.110.0030.04311.10
5.2.100.0030.04011.25
5.2.90.0100.03711.01
5.2.80.0030.06011.02
5.2.70.0070.06310.92
5.2.60.0030.04711.06
5.2.50.0000.04711.04
5.2.40.0100.05011.01
5.2.30.0030.04010.73
5.2.20.0070.05310.88
5.2.10.0030.04010.82
5.2.00.0100.04310.68
5.1.60.0100.04010.07
5.1.50.0130.04010.05
5.1.40.0070.0479.89
5.1.30.0070.04010.32
5.1.20.0100.04710.33
5.1.10.0100.03310.10
5.1.00.0070.0439.97
5.0.50.0100.0238.63
5.0.40.0070.0238.50
5.0.30.0070.0508.16
5.0.20.0170.0238.11
5.0.10.0030.0308.00
5.0.00.0000.0578.24
4.4.90.0000.0236.82
4.4.80.0070.0206.82
4.4.70.0100.0236.82
4.4.60.0070.0206.82
4.4.50.0070.0276.82
4.4.40.0070.0306.82
4.4.30.0000.0276.82
4.4.20.0000.0276.82
4.4.10.0000.0336.82
4.4.00.0030.0376.82
4.3.110.0070.0276.82
4.3.100.0070.0236.82
4.3.90.0030.0276.82
4.3.80.0070.0276.82
4.3.70.0070.0276.82
4.3.60.0100.0206.82
4.3.50.0000.0236.82
4.3.40.0100.0306.82
4.3.30.0030.0306.82
4.3.20.0000.0236.82
4.3.10.0100.0206.82
4.3.00.0070.0277.39

preferences:
59.88 ms | 400 KiB | 5 Q