3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "ab"; $s1 = "cAbfabe"; $s2 = $s1; do { $s2 = stristr($s2,$s); echo "s2: $s2\n"; $s3 = substr($s2,0,count($s)+1); $s1 = str_ireplace($s3,"<$s3>",$s1); echo "s3: $s3\n"; $s2 = substr($s2,count($s)+1); echo "s2: $s2\n"; echo "=======\n"; } while ($s2 != false); echo "s1: $s1\n";

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)
8.3.60.0150.00616.60
8.3.50.0120.00917.42
8.3.40.0110.00318.70
8.3.30.0090.00618.67
8.3.20.0040.00418.90
8.3.10.0090.00020.70
8.3.00.0050.00319.38
8.2.180.0090.01216.50
8.2.170.0100.00722.96
8.2.160.0070.00719.13
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00418.80
8.2.110.0070.00421.00
8.2.100.0090.00317.91
8.2.90.0030.00619.36
8.2.80.0040.00419.21
8.2.70.0060.00317.75
8.2.60.0050.00317.93
8.2.50.0040.00418.07
8.2.40.0060.00319.88
8.2.30.0030.00618.05
8.2.20.0030.00619.45
8.2.10.0050.00217.82
8.2.00.0050.00617.71
8.1.280.0100.00725.92
8.1.270.0070.00023.99
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0130.00020.82
8.1.230.0000.01220.85
8.1.220.0040.00417.79
8.1.210.0030.00518.97
8.1.200.0090.00017.35
8.1.190.0040.00417.53
8.1.180.0030.00618.10
8.1.170.0050.00318.63
8.1.160.0070.00018.85
8.1.150.0040.00418.56
8.1.140.0040.00417.51
8.1.130.0070.00017.87
8.1.120.0000.00717.54
8.1.110.0080.00017.47
8.1.100.0000.00717.36
8.1.90.0040.00417.40
8.1.80.0050.00217.45
8.1.70.0020.00517.42
8.1.60.0050.00317.64
8.1.50.0040.00417.36
8.1.40.0040.00417.51
8.1.30.0030.00617.68
8.1.20.0000.00817.65
8.1.10.0060.00317.54
8.1.00.0030.00617.52
8.0.300.0050.00220.03
8.0.290.0070.00016.63
8.0.280.0000.00718.38
8.0.270.0070.00017.26
8.0.260.0040.00416.95
8.0.250.0040.00417.04
8.0.240.0070.00017.03
8.0.230.0000.00716.87
8.0.220.0000.00716.83
8.0.210.0080.00016.96
8.0.200.0000.00717.04
8.0.190.0000.00817.07
8.0.180.0040.00416.98
8.0.170.0000.00916.86
8.0.160.0030.00417.04
8.0.150.0030.00616.88
8.0.140.0030.00616.84
8.0.130.0000.00613.39
8.0.120.0090.00016.95
8.0.110.0000.00716.84
8.0.100.0040.00417.00
8.0.90.0040.00417.00
8.0.80.0030.01316.85
8.0.70.0050.00316.86
8.0.60.0040.00416.82
8.0.50.0000.00716.86
8.0.30.0150.00316.88
8.0.20.0050.01317.08
8.0.10.0080.00016.89
8.0.00.0100.01116.85
7.4.330.0000.00513.01
7.4.320.0030.00316.50
7.4.300.0030.00316.52
7.4.290.0040.00416.41
7.4.280.0030.00616.61
7.4.270.0000.00716.53
7.4.260.0060.00013.32
7.4.250.0040.00416.62
7.4.240.0000.00716.59
7.4.230.0000.00716.58
7.4.220.0110.01116.64
7.4.210.0140.00716.63
7.4.200.0000.00716.39
7.4.190.0070.00016.65
7.4.160.0060.01016.69
7.4.150.0180.00016.40
7.4.140.0060.01216.54
7.4.130.0080.00816.57
7.4.120.0070.01316.50
7.4.110.0070.01416.50
7.4.100.0030.01416.50
7.4.90.0140.00316.42
7.4.80.0150.01019.39
7.4.70.0070.01416.69
7.4.60.0060.01116.38
7.4.50.0000.00716.59
7.4.40.0070.01116.57
7.4.30.0150.00816.65
7.4.00.0070.00714.71
7.3.330.0060.00013.10
7.3.320.0050.00313.13
7.3.310.0040.00416.38
7.3.300.0030.00316.42
7.3.290.0090.00916.34
7.3.280.0090.01016.36
7.3.270.0160.00716.45
7.3.260.0090.00916.38
7.3.250.0100.00816.33
7.3.240.0130.00316.32
7.3.230.0000.01716.60
7.3.210.0090.00916.40
7.3.200.0140.00816.51
7.3.190.0200.00316.45
7.3.180.0060.00916.38
7.3.170.0120.00616.41
7.3.160.0150.00016.57
7.3.120.0100.00314.75
7.2.330.0090.00916.61
7.2.320.0060.01416.59
7.2.310.0080.01116.75
7.2.300.0060.01216.87
7.2.290.0130.00916.70
7.2.60.0100.00616.83
7.2.00.0090.00919.39
7.1.200.0190.01115.34
7.1.100.0030.00618.02
7.1.70.0070.00317.31
7.1.60.0130.01019.17
7.1.50.0130.00916.85
7.1.00.0070.06322.36
7.0.200.0040.00416.76
7.0.140.0030.07322.18
7.0.120.0100.05722.09
7.0.60.0030.05719.97
7.0.50.0100.07317.93
7.0.40.0200.07320.25
7.0.30.0200.03720.20
7.0.20.0170.04020.01
7.0.10.0400.07020.09
7.0.00.0070.06020.08
5.6.280.0000.07720.77
5.6.210.0000.04320.71
5.6.200.0070.08018.21
5.6.190.0030.04320.43
5.6.180.0300.03720.47
5.6.170.0130.06020.51
5.6.160.0130.08020.42
5.6.150.0070.03718.18
5.6.140.0000.05018.11
5.6.130.0030.05018.21
5.6.120.0070.08320.98
5.6.110.0000.04321.02
5.6.100.0030.08320.98
5.6.90.0070.08021.00
5.6.80.0100.06320.53
5.6.70.0230.06720.38
5.5.350.0300.07720.36
5.5.340.0070.04017.88
5.5.330.0070.06020.40
5.5.320.0170.06720.33
5.5.310.0200.07720.27
5.5.300.0070.07017.95
5.5.290.0100.08018.01
5.5.280.0070.08720.89
5.5.270.0200.07020.76
5.5.260.0070.03720.95
5.5.250.0100.07720.57
5.5.240.0100.07320.35
5.4.450.0100.03319.51
5.4.440.0070.04319.44
5.4.430.0070.04319.10
5.4.420.0070.04319.24
5.4.410.0030.03719.11
5.4.400.0100.03018.88
5.4.390.0100.03019.16
5.4.380.0100.03718.79
5.4.370.0070.03319.14
5.4.360.0030.04019.18
5.4.350.0100.03019.08
5.4.340.0070.03719.14
5.4.320.0070.05719.18
5.4.310.0070.04719.20
5.4.300.0030.07019.17
5.4.290.0000.04319.18
5.4.280.0100.06019.18
5.4.270.0100.03718.92
5.4.260.0070.03719.07
5.4.250.0030.04318.91
5.4.240.0030.03718.78
5.4.230.0070.07019.07
5.4.220.0000.05719.11
5.4.210.0030.03719.11
5.4.200.0000.05019.17
5.4.190.0030.07719.16
5.4.180.0130.03719.07
5.4.170.0100.07318.79
5.4.160.0130.06718.77
5.4.150.0130.07018.77
5.4.140.0030.04016.27
5.4.130.0200.06716.24
5.4.120.0070.07016.33
5.4.110.0000.04016.34
5.4.100.0070.07316.26
5.4.90.0000.04316.28
5.4.80.0070.05016.27
5.4.70.0070.03316.38
5.4.60.0100.07016.40
5.4.50.0100.07316.24
5.4.40.0070.07016.29
5.4.30.0100.04016.28
5.4.20.0100.05316.12
5.4.10.0000.06016.33
5.4.00.0100.06715.69
5.3.290.0100.07014.60
5.3.280.0030.03714.49
5.3.270.0070.05014.56
5.3.260.0070.06014.54
5.3.250.0070.06714.52
5.3.240.0070.07314.53
5.3.230.0030.08014.57
5.3.220.0130.04014.50
5.3.210.0030.06314.53
5.3.200.0070.04714.65
5.3.190.0030.07714.65
5.3.180.0100.03714.54
5.3.170.0070.07314.49
5.3.160.0100.04714.50
5.3.150.0030.04714.37
5.3.140.0070.07014.52
5.3.130.0030.07714.56
5.3.120.0030.06314.45
5.3.110.0030.04314.43
5.3.100.0130.06714.00
5.3.90.0030.06713.98
5.3.80.0030.04314.11
5.3.70.0070.08013.94
5.3.60.0070.05313.84
5.3.50.0130.03713.96
5.3.40.0130.06313.76
5.3.30.0070.06713.89
5.3.20.0070.07313.63
5.3.10.0130.06713.61
5.3.00.0030.04713.56
5.2.170.0070.05711.22
5.2.160.0070.04011.12
5.2.150.0030.06711.08
5.2.140.0070.05711.02
5.2.130.0100.04311.02
5.2.120.0070.04710.92
5.2.110.0070.05311.06
5.2.100.0130.05010.99
5.2.90.0030.03711.09
5.2.80.0030.03711.02
5.2.70.0070.05710.99
5.2.60.0070.06010.98
5.2.50.0070.06010.95
5.2.40.0100.05010.97
5.2.30.0030.03310.96
5.2.20.0000.06010.88
5.2.10.0030.05710.90
5.2.00.0070.02710.86
5.1.60.0030.02310.14
5.1.50.0070.0539.83
5.1.40.0130.0339.82
5.1.30.0030.04010.34
5.1.20.0000.03310.35
5.1.10.0070.0479.96
5.1.00.0030.0279.97
5.0.50.0000.0478.55
5.0.40.0000.0238.42
5.0.30.0000.0338.30
5.0.20.0030.0238.16
5.0.10.0000.0338.22
5.0.00.0030.0408.12
4.4.90.0070.0307.43
4.4.80.0000.0307.43
4.4.70.0100.0237.43
4.4.60.0070.0237.43
4.4.50.0070.0307.43
4.4.40.0000.0307.43
4.4.30.0100.0307.43
4.4.20.0000.0207.43
4.4.10.0030.0207.43
4.4.00.0030.0507.43
4.3.110.0000.0377.43
4.3.100.0000.0177.43
4.3.90.0000.0207.43
4.3.80.0030.0377.43
4.3.70.0030.0377.43
4.3.60.0100.0277.43
4.3.50.0030.0277.43
4.3.40.0100.0377.43
4.3.30.0000.0237.43
4.3.20.0000.0277.43
4.3.10.0070.0177.43
4.3.00.0000.0207.43

preferences:
40.35 ms | 401 KiB | 5 Q