3v4l.org

run code in 300+ PHP versions simultaneously
<?php $letters = range('a', 'z'); // Recommended syntax. print implode('', $letters); // Old and not-recommended behavior. print implode($letters); ?>

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)
8.3.130.0040.00418.05
8.3.120.0060.00318.82
8.3.110.0060.00320.94
8.3.100.0000.01024.06
8.3.90.0100.00026.77
8.3.80.0060.00316.75
8.3.70.0090.00616.63
8.3.60.0140.00718.31
8.3.50.0050.01217.34
8.3.40.0070.01018.73
8.3.30.0070.00718.63
8.3.20.0040.00421.82
8.3.10.0040.00421.82
8.3.00.0040.00421.77
8.2.250.0100.01018.09
8.2.240.0040.00417.09
8.2.230.0080.00022.58
8.2.220.0030.00537.54
8.2.210.0090.00626.77
8.2.200.0080.00016.38
8.2.190.0120.00616.58
8.2.180.0110.00716.50
8.2.170.0080.00818.84
8.2.160.0130.00722.96
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0040.00419.95
8.2.120.0040.00426.35
8.2.110.0060.00320.53
8.2.100.0070.00417.72
8.2.90.0050.00217.91
8.2.80.0030.00518.04
8.2.70.0030.00517.93
8.2.60.0040.00418.22
8.2.50.0050.00318.10
8.2.40.0040.00419.09
8.2.30.0050.00220.38
8.2.20.0000.00717.99
8.2.10.0000.00719.04
8.2.00.0000.00717.95
8.1.300.0040.00417.80
8.1.290.0050.00518.88
8.1.280.0090.00625.92
8.1.270.0000.00820.11
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0030.00917.36
8.1.230.0080.00420.96
8.1.220.0000.00917.74
8.1.210.0050.00318.91
8.1.200.0000.00817.22
8.1.190.0000.00817.13
8.1.180.0030.00618.10
8.1.170.0000.00818.54
8.1.160.0050.00318.81
8.1.150.0000.00718.80
8.1.140.0050.00318.80
8.1.130.0060.00317.32
8.1.120.0040.00417.42
8.1.110.0030.00517.38
8.1.100.0030.00517.30
8.1.90.0000.00817.43
8.1.80.0000.00917.35
8.1.70.0000.00717.29
8.1.60.0040.00417.41
8.1.50.0040.00417.43
8.1.40.0000.00917.35
8.1.30.0040.00417.46
8.1.20.0000.00817.58
8.1.10.0060.00317.52
8.1.00.0050.00217.32
8.0.300.0050.00219.75
8.0.290.0040.00416.63
8.0.280.0040.00418.43
8.0.270.0030.00316.68
8.0.260.0040.00416.80
8.0.250.0030.00616.93
8.0.240.0070.00016.90
8.0.230.0000.00716.85
8.0.220.0030.00316.71
8.0.210.0070.00016.74
8.0.200.0030.00316.86
8.0.190.0060.00316.91
8.0.180.0030.00316.81
8.0.170.0000.00916.79
8.0.160.0030.00716.90
8.0.150.0040.00416.78
8.0.140.0050.00316.77
8.0.130.0000.00513.23
8.0.120.0000.00716.77
8.0.110.0040.00416.88
8.0.100.0070.00016.87
8.0.90.0050.00316.70
8.0.80.0080.01016.78
8.0.70.0040.00416.70
8.0.60.0020.00516.88
8.0.50.0050.00316.87
8.0.30.0070.01316.82
8.0.20.0130.01017.14
8.0.10.0030.00516.82
8.0.00.0130.00616.71
7.4.330.0020.00216.68
7.4.320.0040.00416.43
7.4.300.0000.00616.36
7.4.290.0030.00316.40
7.4.280.0080.00016.47
7.4.270.0000.00716.50
7.4.260.0030.00516.42
7.4.250.0040.00416.48
7.4.240.0070.00016.45
7.4.230.0000.00716.50
7.4.220.0030.00316.54
7.4.210.0110.00716.53
7.4.200.0030.00316.61
7.4.160.0090.00716.33
7.4.130.0070.01016.44
7.4.120.0120.00616.46
7.4.110.0100.01316.33
7.4.100.0060.01016.43
7.4.90.0090.00916.55
7.4.80.0070.01019.39
7.4.70.0090.00616.42
7.4.60.0070.01316.47
7.4.50.0070.00716.40
7.4.40.0080.00816.49
7.4.00.0080.00814.72
7.3.330.0050.00013.02
7.3.320.0030.00313.05
7.3.310.0030.00316.26
7.3.300.0070.00016.13
7.3.290.0050.01316.16
7.3.280.0070.00916.12
7.3.260.0100.00916.31
7.3.240.0090.00916.20
7.3.230.0030.01416.31
7.3.210.0070.01016.24
7.3.200.0030.01316.32
7.3.190.0060.00916.22
7.3.180.0080.00716.44
7.3.170.0130.01016.49
7.3.160.0110.00616.35
7.3.120.0100.00714.57
7.3.110.0100.00714.49
7.3.100.0060.00614.72
7.3.90.0030.01314.61
7.3.80.0150.00014.83
7.3.70.0100.00614.56
7.3.60.0030.00514.74
7.3.50.0030.01014.55
7.3.40.0030.01014.47
7.3.30.0100.00714.38
7.3.20.0100.00515.55
7.3.10.0070.00915.61
7.3.00.0100.00815.50
7.2.330.0070.01016.61
7.2.320.0100.00716.44
7.2.310.0120.00616.20
7.2.300.0130.00316.38
7.2.290.0140.00716.58
7.2.250.0040.01414.84
7.2.240.0030.01614.80
7.2.230.0070.00715.18
7.2.220.0030.00614.91
7.2.210.0070.01114.95
7.2.200.0080.00414.93
7.2.190.0040.01115.08
7.2.180.0000.01414.99
7.2.170.0090.01114.79
7.2.160.0060.00614.86
7.2.150.0060.01115.06
7.2.140.0070.00714.95
7.2.130.0090.00914.96
7.2.120.0230.01014.87
7.2.110.0220.00614.66
7.2.100.0140.01415.02
7.2.90.0090.01514.82
7.2.80.0180.00315.03
7.2.70.0150.01215.01
7.2.60.0170.00714.70
7.2.50.0170.00315.12
7.2.40.0090.00615.00
7.2.30.0500.00715.00
7.2.20.0100.00714.89
7.2.10.1290.00315.04
7.2.00.0070.00614.89
7.1.330.0000.01215.62
7.1.320.0030.00815.85
7.1.310.0000.01715.69
7.1.300.0040.01115.76
7.1.290.0030.00915.70
7.1.280.0060.01614.78
7.1.270.0120.00214.80
7.1.260.0090.00714.79
7.1.250.0080.00814.05

preferences:
29.61 ms | 403 KiB | 5 Q