3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "ab"; $s1 = "cAbfAbe"; $s2 = $s; do { $s2 = stristr($s1,$s2); echo $s2."\n"; echo substr($s2,0,count($s)+1).".\n"; } while ($s2 != false); echo str_ireplace($s,$s,$s1);

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)
8.3.60.0110.00418.43
8.3.50.0110.01221.98
8.3.40.0040.01118.76
8.3.30.0070.00718.72
8.3.20.0060.00318.78
8.3.10.0080.00021.09
8.3.00.0070.00021.78
8.2.180.0120.00316.50
8.2.170.0090.01222.96
8.2.160.0110.00320.30
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0020.00521.00
8.2.110.0000.01020.53
8.2.100.0040.00817.84
8.2.90.0000.00919.21
8.2.80.0080.00018.05
8.2.70.0040.00417.63
8.2.60.0040.00418.04
8.2.50.0050.00519.48
8.2.40.0050.00318.02
8.2.30.0040.00421.10
8.2.20.0080.00017.70
8.2.10.0000.00717.85
8.2.00.0040.00417.68
8.1.280.0000.01525.92
8.1.270.0070.00723.99
8.1.260.0030.00526.35
8.1.250.0090.00028.09
8.1.240.0090.00022.52
8.1.230.0040.00720.95
8.1.220.0040.00418.77
8.1.210.0040.00418.96
8.1.200.0030.00617.48
8.1.190.0040.00417.66
8.1.180.0000.00818.10
8.1.170.0050.00318.68
8.1.160.0040.00418.87
8.1.150.0030.00718.73
8.1.140.0000.00917.42
8.1.130.0070.00017.73
8.1.120.0040.00417.50
8.1.110.0030.00517.48
8.1.100.0080.00017.36
8.1.90.0030.00417.44
8.1.80.0050.00317.35
8.1.70.0030.00517.42
8.1.60.0040.00417.44
8.1.50.0000.00717.49
8.1.40.0000.00717.50
8.1.30.0000.00717.65
8.1.20.0040.00417.63
8.1.10.0030.00517.58
8.1.00.0000.00817.35
8.0.300.0000.00719.89
8.0.290.0000.00717.18
8.0.280.0030.00318.38
8.0.270.0000.00817.24
8.0.260.0070.00016.94
8.0.250.0000.00716.98
8.0.240.0100.00016.89
8.0.230.0040.00416.97
8.0.220.0000.00616.98
8.0.210.0030.00316.92
8.0.200.0000.00617.04
8.0.190.0040.00417.00
8.0.180.0030.00516.93
8.0.170.0080.00017.00
8.0.160.0070.00016.99
8.0.150.0080.00016.95
8.0.140.0030.00316.83
8.0.130.0000.00513.38
8.0.120.0060.00316.79
8.0.110.0000.00716.98
8.0.100.0000.00716.83
8.0.90.0000.00716.90
8.0.80.0100.00716.94
8.0.70.0070.00016.89
8.0.60.0000.00716.94
8.0.50.0000.00716.82
8.0.30.0120.00717.20
8.0.20.0120.00517.40
8.0.10.0070.00017.05
8.0.00.0090.00816.72
7.4.330.0000.00616.73
7.4.320.0030.00616.42
7.4.300.0000.00916.38
7.4.290.0060.00316.26
7.4.280.0000.00816.37
7.4.270.0040.00416.51
7.4.260.0070.00013.26
7.4.250.0030.00616.35
7.4.240.0000.00816.39
7.4.230.0040.00416.46
7.4.220.0220.01316.35
7.4.210.0090.01616.40
7.4.200.0050.00316.49
7.4.190.0050.00516.61
7.4.160.0170.02016.39
7.4.150.0480.01217.40
7.4.140.0140.01417.86
7.4.130.0230.01416.38
7.4.120.0160.01616.48
7.4.110.0980.01216.56
7.4.100.0610.06316.40
7.4.90.0460.02916.33
7.4.80.0100.01319.39
7.4.70.0370.01916.37
7.4.60.0160.01616.29
7.4.50.0180.00516.27
7.4.40.0170.01722.77
7.4.30.0330.01516.61
7.4.00.0220.00014.95
7.3.330.0000.00713.27
7.3.320.0000.00813.12
7.3.310.0040.00416.25
7.3.300.0030.00616.37
7.3.290.0260.01416.29
7.3.280.0100.01716.32
7.3.270.0370.01417.40
7.3.260.0190.01418.24
7.3.250.0210.01916.24
7.3.240.0130.01616.50
7.3.230.0670.02216.40
7.3.210.0220.01716.21
7.3.200.0320.02319.39
7.3.190.0860.02016.50
7.3.180.0140.01116.34
7.3.170.0560.01616.36
7.3.160.0540.03516.31
7.3.120.0050.01814.59
7.2.330.1010.02616.73
7.2.320.0110.03816.38
7.2.310.0200.02416.82
7.2.300.0360.01616.46
7.2.290.0150.00616.67
7.2.60.0100.00717.00
7.2.00.0100.00619.58
7.1.200.0260.00315.58
7.1.100.0100.00718.14
7.1.70.0120.00617.13
7.1.60.0060.00919.40
7.1.50.0240.01417.11
7.0.200.0110.00716.63

preferences:
48.06 ms | 400 KiB | 5 Q