3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "ab"; $s1 = "cAbfAbe"; $s2 = $s1; do { $s2 = stristr($s2,$s); echo "$s2\n"; $s3 = substr($s2,0,count($s)+1); echo "$s3\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)
8.3.60.0110.00718.43
8.3.50.0140.00522.11
8.3.40.0170.00318.89
8.3.30.0070.00718.83
8.3.20.0040.00418.73
8.3.10.0030.00521.22
8.3.00.0080.00023.70
8.2.180.0110.01116.88
8.2.170.0150.00022.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0090.00317.80
8.2.110.0030.00721.03
8.2.100.0080.00417.84
8.2.90.0090.00019.23
8.2.80.0040.00418.04
8.2.70.0000.00817.48
8.2.60.0000.00818.03
8.2.50.0040.00419.35
8.2.40.0030.00618.22
8.2.30.0000.00719.72
8.2.20.0040.00417.64
8.2.10.0000.00817.84
8.2.00.0000.00717.68
8.1.270.0070.00023.99
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00022.46
8.1.230.0040.00720.85
8.1.220.0050.00318.77
8.1.210.0060.00318.97
8.1.200.0060.00317.35
8.1.190.0000.00917.66
8.1.180.0050.00318.10
8.1.170.0060.00318.66
8.1.160.0020.00518.89
8.1.150.0070.00018.51
8.1.140.0040.00417.38
8.1.130.0000.00717.81
8.1.120.0050.00217.49
8.1.110.0000.00817.46
8.1.100.0040.00417.33
8.1.90.0030.00617.50
8.1.80.0040.00417.43
8.1.70.0000.00717.42
8.1.60.0060.00617.46
8.1.50.0080.00017.45
8.1.40.0090.00017.54
8.1.30.0030.00517.47
8.1.20.0080.00017.61
8.1.10.0050.00317.48
8.1.00.0000.00817.34
8.0.300.0000.00719.91
8.0.290.0050.00216.63
8.0.280.0040.00418.43
8.0.270.0070.00017.27
8.0.260.0000.00816.93
8.0.250.0000.00717.05
8.0.240.0050.00317.04
8.0.230.0000.00716.91
8.0.220.0000.00716.93
8.0.210.0070.00016.91
8.0.200.0030.00316.91
8.0.190.0040.00416.90
8.0.180.0000.00816.93
8.0.170.0040.00416.92
8.0.160.0000.00717.02
8.0.150.0050.00316.79
8.0.140.0000.00716.91
8.0.130.0030.00613.36
8.0.120.0040.00416.87
8.0.110.0040.00416.83
8.0.100.0040.00416.94
8.0.90.0040.00416.93
8.0.80.0090.00616.97
8.0.70.0000.00716.83
8.0.60.0000.00716.75
8.0.50.0040.00416.90
8.0.30.0120.00617.14
8.0.20.0080.01117.40
8.0.10.0070.00017.00
8.0.00.0110.00916.80
7.4.330.0070.00014.79
7.4.320.0080.00016.48
7.4.300.0030.00516.51
7.4.290.0030.00516.46
7.4.280.0060.00316.46
7.4.270.0090.00016.52
7.4.260.0050.00513.26
7.4.250.0060.00316.38
7.4.240.0040.00816.49
7.4.230.0040.00416.41
7.4.220.0070.01616.43
7.4.210.0120.01016.39
7.4.200.0080.00016.50
7.4.190.0030.00616.41
7.4.160.0140.01416.18
7.4.150.0170.01017.40
7.4.140.0270.02117.86
7.4.130.0200.01216.51
7.4.120.0340.01116.47
7.4.110.0090.01816.44
7.4.100.0200.01216.44
7.4.90.0350.01816.43
7.4.80.0600.01219.37
7.4.70.0510.00816.41
7.4.60.0200.00816.33
7.4.50.0040.00816.64
7.4.40.0180.00922.52
7.4.30.0450.00816.24
7.3.330.0030.00513.27
7.3.320.0030.00313.23
7.3.310.0080.00816.33
7.3.300.0080.00016.34
7.3.290.0070.01416.25
7.3.280.0150.01116.20
7.3.270.0520.02817.40
7.3.260.0310.00818.24
7.3.250.0410.01916.36
7.3.240.0060.02616.60
7.3.230.0410.00416.39
7.3.210.0300.00016.38
7.3.200.0490.02519.39
7.3.190.0170.00716.34
7.3.180.0130.01316.34
7.3.170.0110.02216.27
7.3.160.0280.00916.43
7.2.330.1070.00816.57
7.2.320.0170.00816.48
7.2.310.0120.01516.54
7.2.300.0120.01216.73
7.2.290.0580.05016.52
7.2.100.0860.00714.37
7.2.90.0970.00314.51
7.2.80.0670.00614.20
7.2.70.0930.00414.64
7.2.60.0680.01414.66
7.2.50.1060.00314.94
7.2.40.0760.00614.91
7.2.30.0840.00015.00
7.2.20.0670.01315.17
7.2.10.0710.00915.13
7.2.00.0850.01414.70
7.1.220.1240.01313.61
7.1.210.0780.02813.75
7.1.200.0830.02013.67
7.1.190.0980.02013.80
7.1.180.0640.03513.88
7.1.170.0910.02113.80
7.1.160.0550.02914.06
7.1.150.0990.02313.71
7.1.140.0950.00313.93
7.1.130.0330.02713.86
7.1.120.0510.02013.71
7.1.110.1200.00013.92
7.1.100.0980.01713.73
7.1.90.1070.01913.82
7.1.80.1200.02413.91
7.1.70.0870.03213.81
7.1.60.1160.01332.07
7.1.50.1570.00732.05
7.1.40.1450.01931.92
7.1.30.1520.02532.00
7.1.20.1180.01831.83
7.1.10.1000.03013.59
7.1.00.0360.02213.64
7.0.310.0980.02313.44
7.0.300.0460.02313.46
7.0.290.0910.01013.44
7.0.280.0800.02313.67
7.0.270.0980.00713.44
7.0.260.0250.00413.65
7.0.250.0480.01413.73
7.0.240.1010.02013.67
7.0.230.1050.02213.61
7.0.220.0730.01213.74
7.0.210.1050.02613.64
7.0.200.0910.02413.68
7.0.190.1210.03013.67
7.0.180.1200.01413.48
7.0.170.1000.02313.44
7.0.160.1310.02613.66
7.0.150.0470.02113.44
7.0.140.1290.02113.69
7.0.130.1090.03313.60
7.0.120.0740.01713.70
7.0.110.1440.01013.44
7.0.100.0520.02513.44
7.0.90.0410.02713.51
7.0.80.1270.01613.44
7.0.70.1490.01613.50
7.0.60.1190.01713.61
7.0.50.1430.03013.64
7.0.40.1640.03713.68
7.0.30.0320.02813.52
7.0.20.0730.02513.64
7.0.10.1150.02113.44
7.0.00.1530.01013.45
5.6.380.0250.03114.20
5.6.370.0200.02714.30
5.6.360.0280.00814.44
5.6.350.0390.03314.53
5.6.340.0330.02514.46
5.6.330.0260.00914.15
5.6.320.0300.02914.64
5.6.310.0430.03614.22
5.6.300.0390.01514.50
5.6.290.0300.01214.18
5.6.280.0280.01914.24
5.6.270.0240.02014.60
5.6.260.0150.02114.19
5.6.250.0460.00914.39
5.6.240.0290.02014.30
5.6.230.0290.01814.21
5.6.220.0390.02714.25
5.6.210.0460.02114.21
5.6.200.0300.01714.37
5.6.190.0510.02814.23
5.6.180.0360.02314.14
5.6.170.0340.02914.25
5.6.160.0280.02814.34
5.6.150.0260.02914.30
5.6.140.0310.00714.05
5.6.130.0340.01214.15
5.6.120.0340.02714.38
5.6.110.0220.03914.44
5.6.100.0310.02014.26
5.6.90.0390.02214.28
5.6.80.0160.01614.36
5.5.380.0550.02713.44
5.5.370.0320.03213.44
5.5.360.0160.01913.44
5.5.350.0450.02313.44
5.5.340.0460.01913.44
5.5.330.0570.01813.44
5.5.320.0310.02513.44
5.5.310.0230.02013.44
5.5.300.0350.03913.44
5.5.290.0260.02613.44
5.5.280.0370.01913.44
5.5.270.0500.01513.44
5.5.260.0300.03013.44
5.5.250.0280.01213.44
5.5.240.0330.02613.44
5.4.450.0340.02013.44
5.4.440.0220.01213.44
5.4.430.0290.02513.44
5.4.420.0340.01913.44
5.4.410.0290.01913.44

preferences:
50.07 ms | 400 KiB | 5 Q