3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'abcde'; for($i=0, $c=strlen($str); $i<$c; $i++) { echo $i . ' => ' . ord($str[$i]) . PHP_EOL; }

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)
8.3.60.0130.00716.36
8.3.50.0110.01122.03
8.3.40.0110.00418.67
8.3.30.0150.00019.05
8.3.20.0000.00720.13
8.3.10.0080.00021.79
8.3.00.0050.00319.55
8.2.180.0120.00616.38
8.2.170.0080.01222.96
8.2.160.0130.00020.47
8.2.150.0140.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00620.38
8.2.110.0030.00622.20
8.2.100.0040.00819.51
8.2.90.0030.00519.30
8.2.80.0030.00517.97
8.2.70.0040.00417.50
8.2.60.0090.00017.93
8.2.50.0000.00818.07
8.2.40.0080.00019.95
8.2.30.0040.00417.99
8.2.20.0040.00417.70
8.2.10.0040.00418.11
8.2.00.0040.00417.80
8.1.280.0130.00325.92
8.1.270.0050.00322.12
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0060.00323.75
8.1.230.0070.00319.00
8.1.220.0050.00317.79
8.1.210.0080.00018.77
8.1.200.0000.01017.23
8.1.190.0000.00717.40
8.1.180.0030.00518.73
8.1.170.0050.00318.64
8.1.160.0070.00022.13
8.1.150.0080.00018.82
8.1.140.0040.00417.32
8.1.130.0030.00317.82
8.1.120.0050.00317.49
8.1.110.0030.00517.49
8.1.100.0000.00817.30
8.1.90.0000.00717.36
8.1.80.0040.00417.44
8.1.70.0000.00817.42
8.1.60.0040.00417.48
8.1.50.0000.00817.39
8.1.40.0000.00817.50
8.1.30.0000.00817.56
8.1.20.0070.00017.59
8.1.10.0050.00217.43
8.1.00.0040.00417.41
8.0.300.0040.00418.77
8.0.290.0000.00717.04
8.0.280.0070.00018.48
8.0.270.0070.00017.25
8.0.260.0040.00417.25
8.0.250.0000.00616.94
8.0.240.0040.00416.99
8.0.230.0060.00316.98
8.0.220.0070.00016.77
8.0.210.0000.00716.85
8.0.200.0070.00016.91
8.0.190.0020.00516.88
8.0.180.0000.00816.75
8.0.170.0030.00516.94
8.0.160.0040.00417.00
8.0.150.0000.00716.84
8.0.140.0040.00416.86
8.0.130.0000.00513.24
8.0.120.0040.00416.84
8.0.110.0020.00516.82
8.0.100.0070.00016.91
8.0.90.0040.00416.71
8.0.80.0030.01116.88
8.0.70.0040.00416.93
8.0.60.0080.00016.70
8.0.50.0070.00016.71
8.0.30.0130.01217.05
8.0.20.0120.01017.40
8.0.10.0040.00416.92
8.0.00.0080.00916.75
7.4.330.0050.00015.19
7.4.320.0040.00416.49
7.4.300.0030.00316.41
7.4.290.0000.00716.57
7.4.280.0070.00016.52
7.4.270.0030.00316.55
7.4.260.0030.00316.60
7.4.250.0040.00416.46
7.4.240.0030.00316.58
7.4.230.0030.00516.66
7.4.220.0070.01116.55
7.4.210.0090.00616.51
7.4.200.0030.00316.65
7.4.160.0000.01616.46
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0060.01116.46
7.4.120.0100.00616.42
7.4.110.0100.01216.48
7.4.100.0090.00916.46
7.4.90.0090.00916.25
7.4.80.0100.01019.39
7.4.70.0000.01716.48
7.4.60.0030.01316.40
7.4.50.0050.00316.30
7.4.40.0100.00616.64
7.4.30.0130.00616.58
7.4.00.0030.01514.96
7.3.330.0060.00013.07
7.3.320.0050.00013.13
7.3.310.0000.00616.36
7.3.300.0000.00716.32
7.3.290.0120.00416.34
7.3.280.0090.00816.37
7.3.270.0140.00417.40
7.3.260.0140.00416.55
7.3.250.0040.01416.48
7.3.240.0130.00416.48
7.3.230.0070.01016.59
7.3.210.0090.00816.36
7.3.200.0100.00719.39
7.3.190.0030.02016.27
7.3.180.0100.00616.39
7.3.170.0060.01316.59
7.3.160.0080.00816.59
7.3.120.0030.01514.96
7.3.110.0140.00714.75
7.3.100.0090.00915.06
7.3.90.0030.01114.72
7.3.80.0060.01214.70
7.3.70.0000.01614.73
7.3.60.0060.01014.80
7.3.50.0060.00914.48
7.3.40.0030.00514.84
7.3.30.0030.00914.73
7.3.20.0030.01216.65
7.3.10.0060.00916.75
7.3.00.0030.00816.82
7.2.330.0060.01216.60
7.2.320.0110.00816.73
7.2.310.0000.01816.44
7.2.300.0100.00716.37
7.2.290.0070.01016.71
7.2.250.0070.01114.84
7.2.240.0090.00615.17
7.2.230.0090.00914.93
7.2.220.0040.00815.14
7.2.210.0060.00915.27
7.2.200.0060.00915.09
7.2.190.0070.01014.76
7.2.180.0120.00314.71
7.2.170.0030.00915.13
7.2.130.0000.01416.86
7.2.120.0090.00017.03
7.2.110.0060.00616.94
7.2.100.0030.00616.90
7.2.90.0060.00916.72
7.2.80.0060.00916.85
7.2.70.0040.01217.05
7.2.60.0070.00816.96
7.2.50.0000.01416.72
7.2.40.0000.01516.72
7.2.30.0040.01116.84
7.2.20.0060.00917.16
7.2.10.0070.01016.70
7.2.00.0020.00818.02
7.1.330.0000.01515.92
7.1.320.0000.01415.68
7.1.310.0100.00315.70
7.1.300.0070.00715.84
7.1.290.0060.00615.46
7.1.280.0060.00615.52
7.1.270.0030.01215.79
7.1.260.0080.00615.82
7.1.250.0000.01415.82
7.1.200.0030.01015.76
7.1.100.0030.01317.96
7.1.70.0080.00317.12
7.1.60.0070.01719.29
7.1.50.0000.01916.96
7.1.00.0000.08022.28
7.0.200.0080.00415.03
7.0.140.0070.03022.07
7.0.60.0030.06019.78
7.0.50.0070.07717.90
7.0.40.0130.08320.02
7.0.30.0300.05320.09
7.0.20.0200.05320.21
7.0.10.0130.08020.21
7.0.00.0070.08720.20
5.6.280.0070.07020.77
5.6.210.0070.06020.50
5.6.200.0030.04018.18
5.6.190.0070.05020.45
5.6.180.0370.06020.41
5.6.170.0300.07320.61
5.6.160.0130.03320.50
5.6.150.0070.07318.22
5.6.140.0070.03718.22
5.6.130.0070.07718.11
5.6.120.0130.08321.09
5.6.110.0100.07721.11
5.6.100.0230.07320.99
5.6.90.0030.08720.95
5.6.80.0100.08320.53
5.5.350.0200.08320.52
5.5.340.0030.08717.93
5.5.330.0030.04320.21
5.5.320.0300.07320.20
5.5.310.0230.08020.24
5.5.300.0000.04018.01
5.5.290.0030.04017.91
5.5.280.0200.07320.87
5.5.270.0030.05320.82
5.5.260.0100.06720.86
5.5.250.0100.04020.78
5.5.240.0030.07720.14
5.4.450.0330.05719.63
5.4.440.1200.06319.29
5.4.430.0170.05019.49
5.4.420.0070.05719.46
5.4.410.0200.04319.35
5.4.400.0030.05719.29
5.4.390.0100.05718.91
5.4.380.0100.06018.46
5.4.370.0130.05318.72
5.4.360.0270.04018.76
5.4.350.0200.03713.67
5.4.340.0030.03713.64
5.4.320.0130.04014.31
5.4.310.0100.04714.09
5.4.300.0100.05014.20
5.4.290.0030.04314.21
5.4.280.0030.04014.07
5.4.270.0130.03314.04
5.4.260.0070.04014.09
5.4.250.0100.03314.05
5.4.240.0030.03714.09
5.4.230.0100.03314.09
5.4.220.0030.04014.25
5.4.210.0100.03314.18
5.4.200.0070.04714.20
5.4.190.0100.03714.01
5.4.180.0030.03714.01
5.4.170.0070.03714.10
5.4.160.0070.04014.04
5.4.150.0130.03314.01
5.4.140.0130.04713.70
5.4.130.0030.04013.70
5.4.120.0030.04013.72
5.4.110.0030.04013.73
5.4.100.0070.03713.67
5.4.90.0100.03313.73
5.4.80.0030.04013.70
5.4.70.0100.03713.71
5.4.60.0130.03313.63
5.4.50.0100.03313.64
5.4.40.0100.03313.78
5.4.30.0030.03713.80
5.4.20.0070.04013.65
5.4.10.0070.03713.86
5.4.00.0100.03713.34
5.3.290.0030.04314.59
5.3.280.0070.03714.59
5.3.270.0100.03714.61
5.3.260.0070.04014.53
5.3.250.0000.04314.54
5.3.240.0130.04314.45
5.3.230.0170.03714.48
5.3.220.0130.03714.62
5.3.210.0100.04014.59
5.3.200.0100.04014.53
5.3.190.0030.04314.46
5.3.180.0100.03714.45
5.3.170.0170.04714.56
5.3.160.0100.03714.53
5.3.150.0270.04314.57
5.3.140.0100.03314.44
5.3.130.0030.05714.47
5.3.120.0100.04314.50
5.3.110.0030.04314.44
5.3.100.0100.03314.00
5.3.90.0070.03313.88
5.3.80.0070.03313.89
5.3.70.0100.04013.93
5.3.60.0130.03013.91
5.3.50.0100.03713.96
5.3.40.0070.04313.98
5.3.30.0070.03313.85
5.3.20.0030.04013.58
5.3.10.0070.03313.68
5.3.00.0070.03713.68
5.2.170.0000.03311.03
5.2.160.0100.02711.19
5.2.150.0000.03311.14
5.2.140.0070.02711.14
5.2.130.0100.02311.07
5.2.120.0000.03311.02
5.2.110.0070.02711.10
5.2.100.0170.02311.08
5.2.90.0070.02710.95
5.2.80.0070.03011.14
5.2.70.0130.02711.01
5.2.60.0000.03310.90
5.2.50.0070.03011.09
5.2.40.0070.02710.97
5.2.30.0030.03311.04
5.2.20.0100.02310.95
5.2.10.0070.03010.78
5.2.00.0030.03710.72
5.1.60.0030.0239.96
5.1.50.0000.0279.95
5.1.40.0030.0279.94
5.1.30.0070.02310.33
5.1.20.0030.03010.37
5.1.10.0030.02710.03
5.1.00.0030.02710.03
5.0.50.0000.0238.59
5.0.40.0030.0208.57
5.0.30.0000.0338.19
5.0.20.0030.0208.16
5.0.10.0070.0178.12
5.0.00.0030.0338.17
4.4.90.0000.0205.79
4.4.80.0100.0135.90
4.4.70.0030.0175.97
4.4.60.0000.0175.81
4.4.50.0000.0175.85
4.4.40.0030.0235.83
4.4.30.0000.0175.82
4.4.20.0030.0135.90
4.4.10.0070.0105.88
4.4.00.0000.0275.86
4.3.110.0070.0105.77
4.3.100.0000.0175.77
4.3.90.0000.0175.71
4.3.80.0000.0275.75
4.3.70.0000.0175.72
4.3.60.0100.0105.71
4.3.50.0000.0175.72
4.3.40.0000.0275.70
4.3.30.0000.0174.52
4.3.20.0000.0174.57
4.3.10.0030.0134.48
4.3.00.0100.0236.93

preferences:
55.02 ms | 401 KiB | 5 Q