3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = $b = "H"; echo "{$a}:{$b}";

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)
8.3.40.0120.00318.84
8.3.30.0090.00919.07
8.3.20.0040.00420.25
8.3.10.0070.01123.39
8.3.00.0060.00317.38
8.2.170.0030.01622.96
8.2.160.0100.00720.43
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.01026.16
8.2.120.0070.00021.15
8.2.110.0170.00322.27
8.2.100.0090.00319.45
8.2.90.0040.00419.08
8.2.80.0110.00017.97
8.2.70.0030.00517.50
8.2.60.0000.00817.80
8.2.50.0000.00918.07
8.2.40.0040.00418.19
8.2.30.0040.00418.11
8.2.20.0060.00317.62
8.2.10.0040.00418.16
8.2.00.0040.00417.84
8.1.270.0000.00924.01
8.1.260.0100.00326.35
8.1.250.0040.00428.09
8.1.240.0130.00323.91
8.1.230.0040.00819.10
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0070.00317.22
8.1.190.0040.00417.10
8.1.180.0080.00018.89
8.1.170.0030.00518.26
8.1.160.0020.00521.84
8.1.150.0030.00518.71
8.1.140.0070.00017.40
8.1.130.0030.00317.82
8.1.120.0070.00017.43
8.1.110.0030.00517.44
8.1.100.0000.00717.28
8.1.90.0070.00017.45
8.1.80.0030.00317.28
8.1.70.0000.00817.34
8.1.60.0040.00417.44
8.1.50.0030.00617.35
8.1.40.0050.00217.41
8.1.30.0040.00417.54
8.1.20.0000.00717.54
8.1.10.0070.00017.47
8.1.00.0040.00417.48
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0070.00018.33
8.0.270.0070.00016.82
8.0.260.0000.00617.24
8.0.250.0020.00516.85
8.0.240.0070.00016.93
8.0.230.0000.00816.91
8.0.220.0030.00316.91
8.0.210.0070.00016.86
8.0.200.0000.00716.87
8.0.190.0040.00417.00
8.0.180.0040.00416.92
8.0.170.0040.00416.92
8.0.160.0000.00716.94
8.0.150.0040.00716.84
8.0.140.0030.01016.89
8.0.130.0000.00513.30
8.0.120.0040.00416.92
8.0.110.0040.00416.87
8.0.100.0070.00016.84
8.0.90.0030.00316.93
8.0.80.0090.01316.83
8.0.70.0070.00016.89
8.0.60.0070.00016.79
8.0.50.0050.00216.93
8.0.30.0160.00417.16
8.0.20.0140.00617.40
8.0.10.0000.00716.82
8.0.00.0080.01016.55
7.4.330.0030.00315.00
7.4.320.0000.00616.34
7.4.300.0030.00316.45
7.4.290.0030.00316.48
7.4.280.0040.00316.44
7.4.270.0000.00716.40
7.4.260.0050.00516.36
7.4.250.0070.00016.29
7.4.240.0020.00416.47
7.4.230.0000.00716.27
7.4.220.0110.00816.60
7.4.210.0100.00316.47
7.4.200.0080.00016.64
7.4.160.0130.00316.50
7.4.150.0060.01317.40
7.4.140.0140.00317.86
7.4.130.0100.00616.44
7.4.120.0050.01116.56
7.4.110.0070.01116.62
7.4.100.0030.01316.26
7.4.90.0090.00916.39
7.4.80.0130.00619.39
7.4.70.0160.00616.52
7.4.60.0130.00416.51
7.4.50.0000.00416.36
7.4.40.0060.00916.34
7.4.30.0060.01616.51
7.4.10.0070.01014.89
7.4.00.0020.01514.88
7.3.330.0030.00313.17
7.3.320.0000.00513.13
7.3.310.0030.00316.18
7.3.300.0000.00716.27
7.3.290.0050.01016.21
7.3.280.0100.01016.25
7.3.270.0070.01017.40
7.3.260.0100.00616.60
7.3.250.0060.01116.42
7.3.240.0140.00716.54
7.3.230.0000.01716.39
7.3.210.0100.00716.31
7.3.200.0090.00619.39
7.3.190.0170.00016.35
7.3.180.0090.01216.42
7.3.170.0130.00316.35
7.3.160.0030.01316.46
7.3.130.0080.01014.88
7.3.120.0070.01014.88
7.3.110.0060.01114.69
7.3.100.0080.00614.76
7.3.90.0060.00814.71
7.3.80.0080.00514.88
7.3.70.0020.01114.70
7.3.60.0050.00914.63
7.3.50.0100.00414.71
7.3.40.0030.00814.78
7.3.30.0050.00814.74
7.3.20.0060.00816.60
7.3.10.0030.01016.51
7.3.00.0030.00816.43
7.2.330.0060.01016.41
7.2.320.0110.00716.29
7.2.310.0090.00916.38
7.2.300.0060.01216.28
7.2.290.0070.01016.69
7.2.260.0090.00814.95
7.2.250.0080.00815.03
7.2.240.0030.01214.59
7.2.230.0110.00714.99
7.2.220.0080.00814.96
7.2.210.0050.00614.96
7.2.200.0050.00814.94
7.2.190.0070.00714.93
7.2.180.0080.00314.87
7.2.170.0050.00814.79
7.2.160.0060.00814.84
7.2.150.0040.00616.76
7.2.140.0070.00716.76
7.2.130.0040.01017.05
7.2.120.0030.00916.75
7.2.110.0050.01016.71
7.2.100.0070.00516.77
7.2.90.0070.00616.81
7.2.80.0130.00516.82
7.2.70.0070.00616.84
7.2.60.0090.00616.79
7.2.50.0090.00716.77
7.2.40.0100.00516.66
7.2.30.0070.00516.80
7.2.20.0060.01016.80
7.2.10.0100.00316.82
7.2.00.0060.01017.34
7.1.330.0060.00815.71
7.1.320.0100.00415.61
7.1.310.0030.01015.64
7.1.300.0020.00915.65
7.1.290.0060.00715.43
7.1.280.0020.01015.54
7.1.270.0060.00615.66
7.1.260.0060.00715.64
7.1.250.0090.00515.48
7.1.240.0080.00715.62
7.1.230.0020.01015.62
7.1.220.0050.00815.63
7.1.210.0070.00715.67
7.1.200.0090.00615.57
7.1.190.0070.00715.53
7.1.180.0140.00615.53
7.1.170.0130.00715.51
7.1.160.0120.00815.73
7.1.150.0150.00615.67
7.1.140.0090.00615.65
7.1.130.0080.00315.71
7.1.120.0190.00515.55
7.1.110.0050.01015.62
7.1.100.0070.00916.23
7.1.90.0070.00715.66
7.1.80.0080.00615.77
7.1.70.0060.00715.91
7.1.60.0050.01016.56
7.1.50.0090.00815.99
7.1.40.0070.00815.79
7.1.30.0030.00915.66
7.1.20.0060.00715.68
7.1.10.0070.00715.63
7.1.00.0070.02517.43
7.0.330.0050.00815.18
7.0.320.0020.00715.32
7.0.310.0060.00715.30
7.0.300.0040.00815.23
7.0.290.0060.00615.22
7.0.280.0110.00315.24
7.0.270.0060.00815.36
7.0.260.0070.00615.34
7.0.250.0110.00415.33
7.0.240.0090.00715.33
7.0.230.0060.00715.43
7.0.220.0060.01015.27
7.0.210.0080.00615.33
7.0.200.0060.00615.74
7.0.190.0050.00715.37
7.0.180.0120.00315.37
7.0.170.0070.00615.43
7.0.160.0080.00515.27
7.0.150.0080.00715.30
7.0.140.0070.02317.08
7.0.130.0160.00815.28
7.0.120.0090.00215.27
7.0.110.0070.02516.58
7.0.100.0070.01916.58
7.0.90.0100.02316.60
7.0.80.0110.02216.44
7.0.70.0060.01916.48
7.0.60.0060.02416.46
7.0.50.0070.02516.65
7.0.40.0060.02415.05
7.0.30.0080.01815.13
7.0.20.0040.03015.06
7.0.10.0070.02215.16
7.0.00.0070.01915.14
5.6.400.0030.00614.33
5.6.390.0050.01214.29
5.6.380.0070.00714.20
5.6.370.0080.00714.27
5.6.360.0040.00914.15
5.6.350.0060.00714.40
5.6.340.0100.00214.44
5.6.330.0080.00814.19
5.6.320.0040.01114.22
5.6.310.0080.00514.42
5.6.300.0040.01014.27
5.6.290.0060.00714.23
5.6.280.0080.02215.92
5.6.270.0050.00714.29
5.6.260.0050.00714.37
5.6.250.0080.02715.77
5.6.240.0070.02315.93
5.6.230.0080.01815.73
5.6.220.0080.02615.94
5.6.210.0120.01815.92
5.6.200.0100.02516.00
5.6.190.0090.02115.95
5.6.180.0030.03115.86
5.6.170.0120.02116.01
5.6.160.0080.02216.01
5.6.150.0060.01815.96
5.6.140.0110.01815.95
5.6.130.0040.02616.01
5.6.120.0080.01715.92
5.6.110.0100.02416.06
5.6.100.0050.02615.99
5.6.90.0080.02615.93
5.6.80.0080.02515.79
5.6.70.0080.02315.76
5.6.60.0080.02315.74
5.6.50.0060.02315.75
5.6.40.0070.01515.64
5.6.30.0060.01615.77
5.6.20.0070.01815.71
5.6.10.0080.02015.81
5.6.00.0080.02215.71
5.5.380.0070.02315.50
5.5.370.0040.02615.41
5.5.360.0070.02415.25
5.5.350.0090.02515.40
5.5.340.0050.02715.46
5.5.330.0080.01315.47
5.5.320.0050.02515.48
5.5.310.0110.01815.52
5.5.300.0080.01515.56
5.5.290.0050.02615.48
5.5.280.0070.01715.50
5.5.270.0100.02115.56
5.5.260.0070.02415.36
5.5.250.0050.02515.46
5.5.240.0110.01715.23
5.5.230.0080.02515.25
5.5.220.0070.02315.23
5.5.210.0060.02315.18
5.5.200.0080.02315.19
5.5.190.0050.02615.24
5.5.180.0080.02215.26
5.5.170.0070.00814.09
5.5.160.0090.01915.30
5.5.150.0090.02415.19
5.5.140.0090.01615.40
5.5.130.0090.02115.33
5.5.120.0110.01915.25
5.5.110.0090.02115.33
5.5.100.0070.02415.39
5.5.90.0080.01415.27
5.5.80.0060.01915.08
5.5.70.0060.02415.27
5.5.60.0070.02215.10
5.5.50.0090.02315.33
5.5.40.0070.02615.19
5.5.30.0030.01915.33
5.5.20.0070.02515.25
5.5.10.0040.02715.22
5.5.00.0060.02115.10
5.4.450.0050.01513.43
5.4.440.0090.01913.51
5.4.430.0070.01813.48
5.4.420.0080.01713.37
5.4.410.0080.01613.21
5.4.400.0080.01313.32
5.4.390.0060.02413.31
5.4.380.0050.02413.34
5.4.370.0060.01013.39
5.4.360.0070.01313.33
5.4.350.0040.02413.38
5.4.340.0080.01913.36
5.4.330.0070.00611.42
5.4.320.0050.02513.44
5.4.310.0090.01713.34
5.4.300.0040.02013.35
5.4.290.0040.02113.46
5.4.280.0050.02613.21
5.4.270.0050.01513.46
5.4.260.0070.01813.41
5.4.250.0070.02013.42
5.4.240.0070.02013.47
5.4.230.0050.02313.32
5.4.220.0040.02613.40
5.4.210.0050.02613.34
5.4.200.0070.02113.38
5.4.190.0060.02113.35
5.4.180.0070.01913.23
5.4.170.0070.02213.39
5.4.160.0060.01613.45
5.4.150.0080.02013.28
5.4.140.0030.02212.65
5.4.130.0020.02512.60
5.4.120.0040.01512.70
5.4.110.0060.01412.74
5.4.100.0050.02312.70
5.4.90.0060.01412.75
5.4.80.0050.02412.69
5.4.70.0040.02212.75
5.4.60.0090.01212.53
5.4.50.0070.01612.71
5.4.40.0040.02012.68
5.4.30.0080.02112.57
5.4.20.0050.01612.71
5.4.10.0060.01812.71
5.4.00.0050.02312.51
5.3.290.0090.03313.70
5.3.280.0070.04213.72
5.3.270.0090.03913.70
5.3.260.0130.03513.61
5.3.250.0070.03813.70
5.3.240.0090.03713.64
5.3.230.0130.03513.65
5.3.220.0080.03713.58
5.3.210.0040.04413.68
5.3.200.0060.03813.71
5.3.190.0050.03913.67
5.3.180.0030.03013.60
5.3.170.0100.03813.63
5.3.160.0040.03913.60
5.3.150.0080.02813.63
5.3.140.0050.02513.63
5.3.130.0090.04113.64
5.3.120.0120.02013.68
5.3.110.0070.02613.58
5.3.100.0070.03413.46
5.3.90.0080.04113.32
5.3.80.0080.03613.44
5.3.70.0070.04113.45
5.3.60.0080.03713.40
5.3.50.0080.02113.33
5.3.40.0080.03813.40
5.3.30.0060.02513.24
5.3.20.0110.03713.25
5.3.10.0090.03413.18
5.3.00.0070.02613.11
5.2.170.0050.03811.93
5.2.160.0080.02811.93
5.2.150.0080.02411.97
5.2.140.0040.01711.92
5.2.130.0030.02811.94
5.2.120.0090.02811.89
5.2.110.0040.03611.95
5.2.100.0080.03011.90
5.2.90.0080.02112.02
5.2.80.0030.03511.89
5.2.70.0080.01711.88
5.2.60.0050.03411.92
5.2.50.0070.03411.91
5.2.40.0070.03211.88
5.2.30.0110.03011.85
5.2.20.0040.02111.88
5.2.10.0050.03311.83
5.2.00.0050.02711.70
5.1.60.0020.03211.46
5.1.50.0100.02511.35
5.1.40.0030.02911.42
5.1.30.0050.02911.49
5.1.20.0070.02811.57
5.1.10.0100.02511.33
5.1.00.0030.03111.43
5.0.50.0030.01310.75
5.0.40.0100.01710.63
5.0.30.0020.03510.63
5.0.20.0040.01910.63
5.0.10.0020.02210.63
5.0.00.0020.03210.63
4.4.90.0030.01810.63
4.4.80.0020.01410.63
4.4.70.0020.01910.63
4.4.60.0060.01410.63
4.4.50.0060.01510.63
4.4.40.0040.02210.63
4.4.30.0060.01310.63
4.4.20.0010.01110.63
4.4.10.0060.01710.63
4.4.00.0070.02010.63
4.3.110.0030.01810.63
4.3.100.0070.01610.63
4.3.90.0030.01710.63
4.3.80.0030.02710.63
4.3.70.0040.01910.63
4.3.60.0050.01210.63
4.3.50.0010.01610.63
4.3.40.0040.01510.63
4.3.30.0020.00910.63
4.3.20.0000.01410.63
4.3.10.0030.00810.63
4.3.00.0020.00810.63

preferences:
38.95 ms | 400 KiB | 5 Q