3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "ab"; $s1 = "cAbfAbe"; echo substr(stristr($s1,$s),0,count($s)+1); echo "\n"; echo str_ireplace($s1,$s,$s);

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)
8.3.60.0120.00916.50
8.3.50.0090.01022.04
8.3.40.0120.00918.80
8.3.30.0060.01218.96
8.3.20.0080.00420.16
8.3.10.0120.00623.66
8.3.00.0040.00420.61
8.2.180.0070.01016.38
8.2.170.0140.00722.96
8.2.160.0190.00022.04
8.2.150.0040.00424.18
8.2.140.0100.01024.66
8.2.130.0080.00026.16
8.2.120.0090.00922.26
8.2.110.0100.00021.03
8.2.100.0060.00617.78
8.2.90.0030.00618.95
8.2.80.0000.00817.97
8.2.70.0050.00517.38
8.2.60.0030.00618.04
8.2.50.0000.00918.07
8.2.40.0040.00419.38
8.2.30.0040.00418.05
8.2.20.0050.00217.69
8.2.10.0040.00419.66
8.2.00.0040.00417.76
8.1.280.0100.00725.92
8.1.270.0030.01722.06
8.1.260.0160.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00019.43
8.1.230.0080.00419.11
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.25
8.1.190.0090.00017.53
8.1.180.0030.00618.10
8.1.170.0040.00418.59
8.1.160.0000.00822.05
8.1.150.0040.00418.55
8.1.140.0020.00517.37
8.1.130.0070.00017.81
8.1.120.0000.00717.40
8.1.110.0040.00417.46
8.1.100.0000.00717.32
8.1.90.0030.00317.48
8.1.80.0030.00317.44
8.1.70.0000.00717.32
8.1.60.0000.01017.53
8.1.50.0030.00617.58
8.1.40.0060.00317.48
8.1.30.0040.00417.62
8.1.20.0000.00817.59
8.1.10.0040.00417.61
8.1.00.0000.00917.54
8.0.300.0040.00418.77
8.0.290.0040.00417.16
8.0.280.0030.00318.44
8.0.270.0000.00717.17
8.0.260.0030.00316.81
8.0.250.0000.00716.89
8.0.240.0060.00316.90
8.0.230.0030.00317.04
8.0.220.0040.00416.77
8.0.210.0050.00316.85
8.0.200.0030.00316.90
8.0.190.0000.00716.93
8.0.180.0040.00316.91
8.0.170.0040.00416.98
8.0.160.0000.00816.98
8.0.150.0040.00416.77
8.0.140.0030.00616.92
8.0.130.0030.00313.35
8.0.120.0000.00816.93
8.0.110.0070.00016.91
8.0.100.0040.00416.80
8.0.90.0000.00716.99
8.0.80.0130.00316.99
8.0.70.0040.00416.91
8.0.60.0030.00516.91
8.0.50.0040.00416.80
8.0.30.0110.00816.98
8.0.20.0130.00517.40
8.0.10.0040.00416.97
8.0.00.0120.00916.67
7.4.330.0000.00515.05
7.4.320.0030.00316.43
7.4.300.0000.00716.59
7.4.290.0000.00716.39
7.4.280.0070.00016.34
7.4.270.0030.00516.54
7.4.260.0030.00316.57
7.4.250.0040.00416.57
7.4.240.0030.00416.48
7.4.230.0030.00316.68
7.4.220.0120.00616.53
7.4.210.0070.00916.68
7.4.200.0070.00016.69
7.4.190.0050.00216.46
7.4.160.0150.00016.38
7.4.150.0060.01217.40
7.4.140.0060.01117.86
7.4.130.0120.00716.59
7.4.120.0110.00816.51
7.4.110.0100.00716.63
7.4.100.0050.01416.65
7.4.90.0030.01316.48
7.4.80.0130.00316.39
7.4.70.0090.00916.58
7.4.60.0090.00616.53
7.4.50.0000.00816.31
7.4.40.0030.00922.77
7.4.30.0090.00616.56
7.4.00.0140.00315.10
7.3.330.0000.00513.16
7.3.320.0060.00012.99
7.3.310.0040.00416.14
7.3.300.0050.00216.25
7.3.290.0100.00316.29
7.3.280.0080.01116.25
7.3.270.0080.00817.40
7.3.260.0040.01416.55
7.3.250.0140.00816.39
7.3.240.0090.00816.34
7.3.230.0100.01416.39
7.3.210.0070.01116.49
7.3.200.0150.00619.39
7.3.190.0120.00916.36
7.3.180.0100.01016.37
7.3.170.0040.01616.39
7.3.160.0030.01216.42
7.3.120.0000.01414.78
7.2.330.0070.01016.42
7.2.320.0120.00916.38
7.2.310.0060.01116.33
7.2.300.0140.00316.80
7.2.290.0080.00816.62
7.2.60.0060.00916.92
7.2.00.0090.00919.48
7.1.200.0060.00315.73
7.1.100.0180.00017.95
7.1.70.0030.00316.74
7.1.60.0070.01719.29
7.1.50.0100.01016.57
7.1.00.0000.08022.35
7.0.200.0030.00716.88
7.0.140.0000.07722.16
7.0.60.0030.04720.06
7.0.50.0070.05317.80
7.0.40.0030.04720.40
7.0.30.0270.08020.13
7.0.20.0100.06020.20
7.0.10.0130.06020.00
7.0.00.0170.07020.16
5.6.280.0000.07721.10
5.6.210.0030.04320.71
5.6.200.0100.07718.13
5.6.190.0030.05320.49
5.6.180.0500.07320.39
5.6.170.0370.06020.60
5.6.160.0000.05320.38
5.6.150.0000.04718.18
5.6.140.0130.07718.11
5.6.130.0070.07318.22
5.6.120.0030.08021.14
5.6.110.0030.08320.97
5.6.100.0030.04021.12
5.6.90.0100.08321.12
5.6.80.0100.07720.27
5.5.350.4070.04720.40
5.5.340.0030.06718.02
5.5.330.0170.03320.19
5.5.320.0270.05020.24
5.5.310.0300.07320.50
5.5.300.0070.07717.95
5.5.290.0030.07317.98
5.5.280.0130.07320.73
5.5.270.0070.07020.75
5.5.260.0100.06020.71
5.5.250.0130.05720.77
5.5.240.0030.04020.25
5.4.450.0770.03719.26
5.4.440.0300.05019.11
5.4.430.0200.05319.48
5.4.420.0130.05719.38
5.4.410.0230.05019.33
5.4.400.0330.05018.75
5.4.390.0330.05318.60
5.4.380.0030.06318.63
5.4.370.0170.05018.64
5.4.360.0100.05718.73
5.4.350.0200.05018.77
5.4.340.0170.04718.48
5.4.320.0070.04012.45
5.4.310.0090.03412.45
5.4.300.0040.04512.45
5.4.290.0050.04312.45
5.4.280.0050.04112.34
5.4.270.0030.03812.35
5.4.260.0100.04312.34
5.4.250.0110.03812.34
5.4.240.0060.03512.35
5.4.230.0070.04012.33
5.4.220.0080.05312.34
5.4.210.0090.04012.34
5.4.200.0080.03612.34
5.4.190.0050.03512.34
5.4.180.0080.04812.33
5.4.170.0380.08112.33
5.4.160.0140.04412.32
5.4.150.0140.04412.32
5.4.140.0160.04212.00
5.4.130.0190.03911.99
5.4.120.0150.04211.95
5.4.110.0200.03611.94
5.4.100.0200.03911.94
5.4.90.0180.06911.95
5.4.80.0180.03911.94
5.4.70.0180.04111.94
5.4.60.0190.03911.94
5.4.50.0140.04611.94
5.4.40.0190.04211.93
5.4.30.0150.04311.93
5.4.20.0180.04111.93
5.4.10.0150.04111.93
5.4.00.0150.04011.41
5.3.290.0100.03812.80
5.3.280.0110.03712.71
5.3.270.0170.04412.72
5.3.260.0220.09912.72
5.3.250.0160.04512.72
5.3.240.0170.04312.72
5.3.230.0190.04212.71
5.3.220.0130.04612.68
5.3.210.0170.04412.68
5.3.200.0180.04812.68
5.3.190.0150.04612.68
5.3.180.0130.04612.68
5.3.170.0280.09212.67
5.3.160.0170.04512.67
5.3.150.0140.04612.68
5.3.140.0180.04312.66
5.3.130.0140.04612.66
5.3.120.0170.04412.66
5.3.110.0120.04712.66
5.3.100.0140.04512.12
5.3.90.0150.04312.08
5.3.80.0130.04612.07
5.3.70.0100.04912.08
5.3.60.0170.04212.06
5.3.50.0140.04512.00
5.3.40.0150.04412.00
5.3.30.0120.04411.95
5.3.20.0170.04111.72
5.3.10.0130.04311.68
5.3.00.0290.06211.67
5.2.170.0130.0339.18
5.2.160.0130.0339.18
5.2.150.0200.0579.17
5.2.140.0170.0299.17
5.2.130.0130.0349.13
5.2.120.0140.0339.13
5.2.110.0190.0629.14
5.2.100.0130.0349.14
5.2.90.0180.0359.13
5.2.80.0130.0359.13
5.2.70.0180.0339.13
5.2.60.0130.0359.08
5.2.50.0100.0389.05
5.2.40.0150.0359.02
5.2.30.0150.0379.00
5.2.20.0210.0288.99
5.2.10.0390.0708.92
5.2.00.0170.0298.78
5.1.60.0130.0318.06
5.1.50.0160.0268.06
5.1.40.0130.0278.05
5.1.30.0140.0318.39
5.1.20.0120.0318.43
5.1.10.0050.0398.14
5.1.00.0150.0278.14
5.0.50.0100.0246.62
5.0.40.0110.0216.48
5.0.30.0100.0356.30
5.0.20.0070.0256.26
5.0.10.0130.0186.24
5.0.00.0100.0346.23
4.4.90.0090.0164.78
4.4.80.0090.0174.75
4.4.70.0080.0184.75
4.4.60.0080.0184.75
4.4.50.0060.0194.77
4.4.40.0060.0294.71
4.4.30.0070.0184.76
4.4.20.0060.0194.85
4.4.10.0080.0174.85
4.4.00.0040.0314.76
4.3.110.0060.0194.66
4.3.100.0080.0164.66
4.3.90.0090.0154.63
4.3.80.0050.0294.58
4.3.70.0070.0174.63
4.3.60.0070.0174.63
4.3.50.0070.0174.63
4.3.40.0080.0554.54
4.3.30.0030.0203.30
4.3.20.0050.0183.29
4.3.10.0060.0173.25
4.3.00.0030.01712.80

preferences:
38.18 ms | 401 KiB | 5 Q