3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "q w e r t y"; $t = $s; do $t = str_replace(' ', ' ', $t, $count); while($count); echo $t;

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)
8.3.70.0130.00316.75
8.3.60.0160.00316.38
8.3.50.0140.00016.25
8.3.40.0110.00318.75
8.3.30.0040.01118.46
8.3.20.0000.00824.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.180.0120.00625.92
8.2.170.0120.00318.75
8.2.160.0100.00322.96
8.2.150.0000.00825.66
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0070.00026.35
8.2.110.0090.00920.86
8.2.100.0060.00617.72
8.2.90.0030.00518.97
8.2.80.0040.00417.97
8.2.70.0000.01017.50
8.2.60.0090.00018.04
8.2.50.0060.00318.07
8.2.40.0040.00418.35
8.2.30.0000.00717.97
8.2.20.0000.00718.07
8.2.10.0030.00619.30
8.2.00.0050.00319.29
8.1.280.0110.00425.92
8.1.270.0050.00323.99
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0100.00721.26
8.1.230.0080.00417.77
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0060.00317.22
8.1.180.0040.00418.10
8.1.170.0030.00618.55
8.1.160.0030.00318.82
8.1.150.0000.00718.69
8.1.140.0040.00418.67
8.1.130.0050.00217.36
8.1.120.0080.00418.05
8.1.110.0060.00517.94
8.1.100.0030.00518.90
8.1.90.0030.00618.88
8.1.80.0030.00517.96
8.1.70.0060.00317.96
8.1.60.0090.00218.09
8.1.50.0100.00218.92
8.1.40.0070.00718.08
8.1.30.0080.00618.15
8.1.20.0090.00418.14
8.1.10.0080.00618.09
8.1.00.0090.00518.01
8.0.300.0030.00518.77
8.0.290.0080.00016.88
8.0.280.0030.00318.31
8.0.270.0050.00318.00
8.0.260.0000.00716.80
8.0.250.0050.00717.46
8.0.240.0100.00117.44
8.0.230.0040.00717.33
8.0.220.0090.00217.26
8.0.210.0060.00517.35
8.0.200.0030.00717.46
8.0.190.0040.00717.43
8.0.180.0060.00517.41
8.0.170.0040.00617.30
8.0.160.0050.00517.43
8.0.150.0070.00417.37
8.0.140.0090.00217.31
8.0.130.0070.00315.48
8.0.120.0120.00117.18
8.0.110.0030.00717.36
8.0.100.0050.00617.34
8.0.90.0050.00517.38
8.0.80.0100.00617.18
8.0.70.0080.00317.32
8.0.60.0070.00417.39
8.0.50.0050.00617.25
8.0.30.0080.01017.26
8.0.20.0050.00917.43
8.0.10.0080.01017.44
8.0.00.0100.00617.53
7.4.330.0020.00314.70
7.4.320.0110.00017.01
7.4.300.0110.00016.98
7.4.290.0070.00617.04
7.4.280.0090.00417.02
7.4.270.0060.00616.92
7.4.260.0040.00615.38
7.4.250.0070.00517.05
7.4.240.0050.00617.06
7.4.230.0070.00416.98
7.4.220.0040.00516.78
7.4.210.0050.01016.67
7.4.200.0050.00417.01
7.4.190.0000.00717.51
7.4.180.0110.00017.52
7.4.160.0100.00717.06
7.4.150.0060.00916.94
7.4.140.0060.00617.84
7.4.130.0070.00516.81
7.4.120.0030.01016.97
7.4.110.0050.00717.93
7.4.100.0040.00717.96
7.4.90.0100.00316.90
7.4.80.0070.00616.89
7.4.70.0050.01016.97
7.4.60.0110.00617.02
7.4.50.0060.00916.86
7.4.40.0090.00516.89
7.4.30.0070.00516.90
7.4.20.0060.00917.00
7.4.10.0050.00616.92
7.4.00.0040.00716.88
7.3.330.0020.00816.74
7.3.320.0040.00615.16
7.3.310.0050.00516.82
7.3.300.0060.00416.80
7.3.290.0070.00916.56
7.3.280.0120.00217.51
7.3.270.0100.00316.82
7.3.260.0050.01016.80
7.3.250.0080.01016.79
7.3.240.0100.00516.80
7.3.230.0120.00616.78
7.3.220.0100.00516.78
7.3.210.0070.00716.80
7.3.200.0110.00616.73
7.3.190.0100.00416.71
7.3.180.0120.00416.74
7.3.170.0100.00416.64
7.3.160.0050.00916.76
7.3.150.0070.00816.76
7.3.140.0090.00516.68
7.3.130.0080.00616.66
7.3.120.0100.00316.77
7.3.110.0070.00716.61
7.3.100.0060.01116.62
7.3.90.0100.00416.98
7.3.80.0080.00616.68
7.3.70.0070.00816.86
7.3.60.0130.00116.85
7.3.50.0120.00316.83
7.3.40.0100.00416.87
7.3.30.0070.00716.87
7.3.20.0080.00717.80
7.3.10.0070.00817.73
7.3.00.0060.01017.83

preferences:
48.59 ms | 400 KiB | 5 Q