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); echo "s3: $s3\n"; $s2 = substr($s2,count($s)+1); echo "s2: $s2\n"; echo "=======\n"; } while ($s2 != false);

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)
8.3.60.0070.01016.38
8.3.50.0070.01021.93
8.3.40.0120.00318.79
8.3.30.0140.00019.04
8.3.20.0040.00420.16
8.3.10.0040.00423.71
8.3.00.0120.00319.38
8.2.180.0160.00018.41
8.2.170.0120.00622.96
8.2.160.0100.00320.29
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0040.00422.25
8.2.110.0070.00320.41
8.2.100.0110.00017.91
8.2.90.0040.00419.23
8.2.80.0000.00717.97
8.2.70.0060.00317.63
8.2.60.0060.00317.80
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0040.00418.13
8.2.20.0040.00417.78
8.2.10.0000.00818.00
8.2.00.0000.00817.71
8.1.280.0060.00825.92
8.1.270.0040.00423.85
8.1.260.0000.00826.35
8.1.250.0050.00228.09
8.1.240.0000.00822.53
8.1.230.0090.00319.10
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0050.00317.30
8.1.180.0090.00018.10
8.1.170.0000.00818.27
8.1.160.0040.00422.12
8.1.150.0000.00718.55
8.1.140.0070.00017.46
8.1.130.0040.00417.75
8.1.120.0040.00417.49
8.1.110.0080.00017.45
8.1.100.0030.00317.47
8.1.90.0080.00017.32
8.1.80.0000.00717.49
8.1.70.0000.00717.47
8.1.60.0040.00417.55
8.1.50.0040.00417.57
8.1.40.0000.00717.52
8.1.30.0000.00817.56
8.1.20.0000.00817.66
8.1.10.0020.00517.54
8.1.00.0040.00417.39
8.0.300.0000.00718.77
8.0.290.0030.00317.04
8.0.280.0040.00418.49
8.0.270.0070.00017.25
8.0.260.0000.00816.79
8.0.250.0040.00416.90
8.0.240.0000.00716.98
8.0.230.0030.00317.03
8.0.220.0070.00016.91
8.0.210.0050.00217.02
8.0.200.0000.00716.90
8.0.190.0060.00317.04
8.0.180.0000.00716.90
8.0.170.0000.00816.86
8.0.160.0070.00016.83
8.0.150.0030.00316.91
8.0.140.0000.00816.86
8.0.130.0030.00313.37
8.0.120.0000.00816.77
8.0.110.0000.00816.99
8.0.100.0000.00716.82
8.0.90.0000.00916.76
8.0.80.0070.00716.94
8.0.70.0040.00416.97
8.0.60.0020.00516.99
8.0.50.0080.00016.84
8.0.30.0120.00917.08
8.0.20.0060.01217.40
8.0.10.0050.00316.92
8.0.00.0110.00616.96
7.4.330.0000.00715.00
7.4.320.0030.00316.41
7.4.300.0000.00616.61
7.4.290.0050.00316.50
7.4.280.0040.00416.50
7.4.270.0030.00316.51
7.4.260.0070.00016.57
7.4.250.0040.00416.36
7.4.240.0050.00216.58
7.4.230.0000.00816.68
7.4.220.0070.01716.45
7.4.210.0090.00716.53
7.4.200.0040.00416.60
7.4.190.0070.00016.75
7.4.160.0090.00916.52
7.4.150.0060.01317.40
7.4.140.0120.00517.86
7.4.130.0050.01416.56
7.4.120.0130.00916.48
7.4.110.0140.00516.46
7.4.100.0140.00716.63
7.4.90.0060.01316.48
7.4.80.0060.01319.39
7.4.70.0000.01916.52
7.4.60.0120.00616.46
7.4.50.0000.00816.59
7.4.40.0060.01022.77
7.4.30.0130.00316.71
7.4.00.0080.00815.11
7.3.330.0030.00313.15
7.3.320.0050.00313.20
7.3.310.0000.00616.23
7.3.300.0000.00916.43
7.3.290.0110.00716.28
7.3.280.0060.01016.33
7.3.270.0090.00917.40
7.3.260.0070.01016.38
7.3.250.0080.00816.46
7.3.240.0090.00916.46
7.3.230.0090.00916.39
7.3.210.0030.01416.50
7.3.200.0120.00619.39
7.3.190.0190.00416.28
7.3.180.0060.00916.34
7.3.170.0070.01016.44
7.3.160.0090.01216.37
7.3.120.0090.00514.68
7.3.110.0110.00714.94
7.3.100.0070.00715.02
7.3.90.0000.01214.64
7.3.80.0030.01014.87
7.3.70.0100.00314.69
7.3.60.0070.00714.95
7.3.50.0100.00714.87
7.3.40.0150.00014.79
7.3.30.0070.00714.66
7.3.20.0030.00916.37
7.3.10.0090.00616.15
7.3.00.0060.00616.73
7.2.330.0080.00816.71
7.2.320.0060.01116.44
7.2.310.0120.00816.41
7.2.300.0040.01716.41
7.2.290.0070.01516.66
7.2.250.0060.01314.84
7.2.240.0060.01215.15
7.2.230.0030.00615.02
7.2.220.0030.01014.96
7.2.210.0030.01114.80
7.2.200.0030.00615.13
7.2.190.0070.00714.96
7.2.180.0000.01114.87
7.2.170.0000.01514.73
7.2.60.0080.00816.89
7.2.00.0070.01019.20
7.1.330.0040.00915.48
7.1.320.0000.01115.90
7.1.310.0080.00415.55
7.1.300.0070.00715.54
7.1.290.0030.00915.82
7.1.280.0030.01015.68
7.1.270.0000.00915.49
7.1.260.0030.00515.53
7.1.200.0260.00615.66
7.1.100.0110.00417.95
7.1.70.0000.00716.79
7.1.60.0140.01119.33
7.1.50.0030.01316.88
7.1.00.0070.07322.43
7.0.200.0070.00416.73
7.0.140.0070.07021.95
7.0.60.0230.06319.86
7.0.50.0070.08317.81
7.0.40.0030.06320.12
7.0.30.0230.07320.16
7.0.20.0170.08720.09
7.0.10.0200.07320.21
7.0.00.0030.05020.24
5.6.280.0070.07021.09
5.6.210.0100.07020.72
5.6.200.0130.04718.18
5.6.190.0000.06020.61
5.6.180.0200.04320.77
5.6.170.0200.05320.39
5.6.160.0100.05320.41
5.6.150.0070.04718.18
5.6.140.0030.07318.14
5.6.130.0100.05718.08
5.6.120.0030.04020.99
5.6.110.0100.05321.11
5.6.100.0000.09321.10
5.6.90.0230.06721.12
5.6.80.0130.07720.41
5.6.70.4500.03320.50
5.5.350.0000.08720.38
5.5.340.0070.06717.98
5.5.330.0070.04720.21
5.5.320.0230.08320.34
5.5.310.0200.05320.21
5.5.300.0070.08017.88
5.5.290.0070.08017.95
5.5.280.0000.04320.84
5.5.270.0130.08020.86
5.5.260.0130.07020.79
5.5.250.0030.08320.43
5.5.240.0100.07320.15
5.4.450.0900.04319.57
5.4.440.0900.05719.63
5.4.430.0770.04719.27
5.4.420.0970.04719.54
5.4.410.0870.05018.97
5.4.400.1100.05019.13
5.4.390.0970.05719.31
5.4.380.0130.06318.57
5.4.370.0270.04718.54
5.4.360.0130.06018.67
5.4.350.0170.06018.50
5.4.340.0200.05718.78
5.4.320.0080.04412.45
5.4.310.0080.03812.45
5.4.300.0110.03512.46
5.4.290.0040.04412.45
5.4.280.0050.04812.35
5.4.270.0070.03512.35
5.4.260.0090.03912.35
5.4.250.0040.04112.35
5.4.240.0060.04212.35
5.4.230.0040.04112.34
5.4.220.0050.04012.34
5.4.210.0080.03912.34
5.4.200.0080.03712.34
5.4.190.0050.04112.34
5.4.180.0060.04512.34
5.4.170.0260.09312.34
5.4.160.0120.05012.33
5.4.150.0140.04912.33
5.4.140.0160.04212.01
5.4.130.0160.04212.00
5.4.120.0180.04311.95
5.4.110.0210.03611.95
5.4.100.0380.08211.95
5.4.90.0090.04911.95
5.4.80.0130.04411.95
5.4.70.0170.04211.95
5.4.60.0130.04611.95
5.4.50.0190.04111.95
5.4.40.0120.04611.94
5.4.30.0160.04211.93
5.4.20.0150.04411.94
5.4.10.0180.04011.93
5.4.00.0160.04011.42
5.3.290.0050.04812.80
5.3.280.0080.03912.71
5.3.270.0170.04412.72
5.3.260.0350.09012.71
5.3.250.0140.04612.72
5.3.240.0260.04112.72
5.3.230.0180.04612.71
5.3.220.0170.04412.68
5.3.210.0130.04912.68
5.3.200.0150.04612.68
5.3.190.0200.04512.68
5.3.180.0120.04812.67
5.3.170.0180.04112.67
5.3.160.0300.06512.67
5.3.150.0150.04512.67
5.3.140.0170.04312.66
5.3.130.0290.06312.66
5.3.120.0200.04012.66
5.3.110.0210.04112.66
5.3.100.0200.04312.12
5.3.90.0160.04312.08
5.3.80.0180.04412.08
5.3.70.0130.04812.07
5.3.60.0180.04412.07
5.3.50.0330.05812.00
5.3.40.0170.04312.00
5.3.30.0150.04411.95
5.3.20.0130.04811.73
5.3.10.0310.06111.68
5.3.00.0320.08811.67
5.2.170.0100.0399.18
5.2.160.0170.0319.18
5.2.150.0170.0319.18
5.2.140.0100.0399.18
5.2.130.0120.0349.14
5.2.120.0160.0339.14
5.2.110.0100.0379.14
5.2.100.0150.0329.14
5.2.90.0110.0369.14
5.2.80.0110.0369.13
5.2.70.0130.0359.13
5.2.60.0140.0339.08
5.2.50.0160.0319.05
5.2.40.0110.0369.03
5.2.30.0120.0359.00
5.2.20.0310.0759.00
5.2.10.0160.0338.92
5.2.00.0110.0358.78
5.1.60.0140.0298.06
5.1.50.0080.0328.06
5.1.40.0110.0288.05
5.1.30.0120.0318.39
5.1.20.0090.0358.43
5.1.10.0110.0318.14
5.1.00.0130.0288.14
5.0.50.0150.0496.62
5.0.40.0120.0206.47
5.0.30.0120.0346.30
5.0.20.0090.0226.27
5.0.10.0080.0236.24
5.0.00.0060.0416.23
4.4.90.0060.0184.78
4.4.80.0060.0194.76
4.4.70.0040.0224.76
4.4.60.0070.0194.75
4.4.50.0100.0144.77
4.4.40.0050.0304.71
4.4.30.0070.0194.76
4.4.20.0110.0144.84
4.4.10.0070.0184.85
4.4.00.0080.0274.75
4.3.110.0050.0204.67
4.3.100.0060.0194.66
4.3.90.0080.0164.63
4.3.80.0090.0264.59
4.3.70.0230.0314.63
4.3.60.0080.0174.63
4.3.50.0070.0174.63
4.3.40.0050.0284.54
4.3.30.0060.0173.30
4.3.20.0050.0183.28
4.3.10.0050.0183.25
4.3.00.0230.01315.59

preferences:
40.35 ms | 401 KiB | 5 Q