3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strtolower('STRING'); echo 'string';

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)
8.3.40.0110.00418.54
8.3.30.0150.00418.51
8.3.20.0000.00720.24
8.3.10.0080.00323.61
8.3.00.0050.00319.43
8.2.170.0040.01122.96
8.2.160.0080.00619.21
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.96
8.2.110.0090.00022.08
8.2.100.0120.00317.72
8.2.90.0000.00817.54
8.2.80.0000.00719.16
8.2.70.0040.00417.91
8.2.60.0000.00918.04
8.2.50.0030.00518.10
8.2.40.0080.00020.40
8.2.30.0040.00419.05
8.2.20.0070.00018.04
8.2.10.0040.00417.80
8.2.00.0000.00718.10
8.1.270.0090.00020.35
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0000.00820.96
8.1.230.0000.01120.89
8.1.220.0060.00317.74
8.1.210.0000.01118.77
8.1.200.0080.00017.23
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0030.00518.34
8.1.160.0090.00018.70
8.1.150.0070.00020.31
8.1.140.0040.00417.50
8.1.130.0000.00820.72
8.1.120.0000.00717.23
8.1.110.0000.00717.32
8.1.100.0040.00417.32
8.1.90.0000.00717.38
8.1.80.0000.00717.38
8.1.70.0000.00817.31
8.1.60.0040.00417.28
8.1.50.0040.00417.23
8.1.40.0040.00417.36
8.1.30.0000.00817.54
8.1.20.0030.00817.48
8.1.10.0040.00417.35
8.1.00.0000.00817.20
8.0.300.0040.00421.73
8.0.290.0040.00416.75
8.0.280.0030.00318.38
8.0.270.0030.00517.05
8.0.260.0060.00016.77
8.0.250.0040.00416.88
8.0.240.0070.00016.88
8.0.230.0070.00016.78
8.0.220.0030.00516.75
8.0.210.0050.00216.75
8.0.200.0030.00316.77
8.0.190.0030.00316.78
8.0.180.0030.00516.83
8.0.170.0030.00616.73
8.0.160.0050.00316.74
8.0.150.0000.00916.52
8.0.140.0000.00716.58
8.0.130.0000.00613.24
8.0.120.0000.00816.73
8.0.110.0040.00416.58
8.0.100.0040.00416.58
8.0.90.0030.00516.75
8.0.80.0160.00016.75
8.0.70.0030.00516.86
8.0.60.0020.00516.54
8.0.50.0040.00416.60
8.0.30.0130.00516.83
8.0.20.0060.01417.40
8.0.10.0000.00816.89
8.0.00.0080.01316.48
7.4.330.0030.00315.55
7.4.320.0000.00716.48
7.4.300.0000.00616.46
7.4.290.0000.00716.36
7.4.280.0040.00416.43
7.4.270.0040.00416.43
7.4.260.0070.00016.46
7.4.250.0000.00716.43
7.4.240.0000.00616.38
7.4.230.0030.00316.48
7.4.220.0000.00716.26
7.4.210.0070.01216.48
7.4.200.0070.00016.27
7.4.160.0140.00416.30
7.4.150.0060.01117.40
7.4.140.0130.00617.86
7.4.130.0120.01016.34
7.4.120.0110.00716.35
7.4.110.0140.00416.41
7.4.100.0130.00316.29
7.4.90.0130.00316.43
7.4.80.0110.00819.39
7.4.70.0170.00716.52
7.4.60.0040.01216.42
7.4.50.0040.01416.25
7.4.40.0030.01316.43
7.4.00.0070.01115.04
7.3.330.0000.00512.87
7.3.320.0050.00013.01
7.3.310.0070.00016.12
7.3.300.0050.00216.12
7.3.290.0000.01416.13
7.3.280.0100.00716.17
7.3.270.0090.00917.40
7.3.260.0090.00916.42
7.3.240.0090.00816.38
7.3.230.0030.01216.20
7.3.210.0070.01016.21
7.3.200.0150.00616.50
7.3.190.0100.01016.04
7.3.180.0040.01116.23
7.3.170.0060.00916.07
7.3.160.0090.00616.35
7.2.330.0120.01216.41
7.2.320.0100.00716.62
7.2.310.0040.01216.34
7.2.300.0040.01516.14
7.2.290.0060.01516.50
7.2.100.0200.00614.70
7.2.90.0290.00714.44
7.2.80.0140.00314.71
7.2.70.2820.00315.04
7.2.60.0840.00415.77
7.2.50.0320.00914.61
7.2.40.2610.00614.83
7.2.30.2590.00615.02
7.2.20.1280.00717.18
7.2.10.1470.01117.31
7.2.00.1760.00517.31
7.1.220.0480.00613.69
7.1.210.0240.00713.71
7.1.200.0100.00314.55
7.1.190.3120.01013.62
7.1.180.0310.01013.81
7.1.170.0700.00713.45
7.1.160.3870.00713.67
7.1.150.3420.00013.79
7.1.140.1400.00415.93
7.1.130.1410.01116.05
7.1.120.0240.01116.23
7.1.110.0060.01015.87
7.1.100.0450.01215.84
7.1.90.0360.00515.87
7.1.80.0120.00915.71
7.1.70.0760.00515.34
7.1.60.0640.01633.52
7.1.50.1190.01033.23
7.1.40.0490.01333.06
7.1.30.0410.01332.99
7.1.20.1190.00833.10
7.1.10.0190.00714.94
7.1.00.0160.01015.16
5.6.380.0090.00613.92

preferences:
48.18 ms | 400 KiB | 5 Q