3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーティーエッフ8hello123等々'; $var = 'hello123'; $pos = strpos($utf8string, $var); if ($pos!==false) { echo substr($utf8string, 0, $pos); }

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)
8.3.60.0070.00716.38
8.3.50.0050.01121.91
8.3.40.0030.01018.76
8.3.30.0090.00618.90
8.3.20.0050.00320.07
8.3.10.0000.00723.70
8.3.00.0050.00319.66
8.2.180.0140.00318.41
8.2.170.0100.01018.83
8.2.160.0150.00622.96
8.2.150.0000.00824.18
8.2.140.0120.00324.66
8.2.130.0080.00026.16
8.2.120.0040.00420.89
8.2.110.0080.00022.11
8.2.100.0090.00617.72
8.2.90.0040.00417.75
8.2.80.0060.00318.82
8.2.70.0000.00817.63
8.2.60.0060.00517.94
8.2.50.0090.00018.10
8.2.40.0000.00720.53
8.2.30.0040.00420.38
8.2.20.0030.00818.40
8.2.10.0050.00318.05
8.2.00.0000.00819.46
8.1.280.0120.00625.92
8.1.270.0040.00423.98
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0030.00723.91
8.1.230.0000.01123.93
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.11
8.1.190.0040.00417.22
8.1.180.0030.00618.10
8.1.170.0040.00418.66
8.1.160.0000.00818.81
8.1.150.0070.00018.80
8.1.140.0050.00317.30
8.1.130.0000.00717.77
8.1.120.0000.00717.30
8.1.110.0000.00817.37
8.1.100.0050.00317.32
8.1.90.0000.00817.46
8.1.80.0070.00017.27
8.1.70.0040.00417.32
8.1.60.0000.00917.52
8.1.50.0040.00417.45
8.1.40.0040.00417.37
8.1.30.0030.00517.42
8.1.20.0080.00017.59
8.1.10.0000.00717.43
8.1.00.0030.00617.32
8.0.300.0040.00419.90
8.0.290.0040.00416.63
8.0.280.0070.00018.43
8.0.270.0040.00416.92
8.0.260.0000.00718.43
8.0.250.0070.00016.85
8.0.240.0030.00316.96
8.0.230.0000.00716.89
8.0.220.0000.00716.82
8.0.210.0030.00316.69
8.0.200.0000.00616.87
8.0.190.0050.00216.77
8.0.180.0050.00316.88
8.0.170.0040.00416.85
8.0.160.0040.00416.70
8.0.150.0070.00016.83
8.0.140.0000.00716.80
8.0.130.0000.00613.27
8.0.120.0000.00716.68
8.0.110.0000.00716.71
8.0.100.0000.00816.70
8.0.90.0000.00716.72
8.0.80.0050.00616.83
8.0.70.0030.00616.75
8.0.60.0080.00016.71
8.0.50.0000.00716.66
8.0.30.0060.00717.33
8.0.20.0130.00517.20
8.0.10.0030.00516.82
8.0.00.0070.00616.90
7.4.330.0030.00315.16
7.4.320.0000.00616.61
7.4.300.0080.00217.21
7.4.290.0030.00316.60
7.4.280.0070.00016.60
7.4.270.0000.00716.59
7.4.260.0000.00716.48
7.4.250.0040.00416.47
7.4.240.0030.00316.52
7.4.230.0030.00316.39
7.4.220.0030.00916.64
7.4.210.0060.00816.61
7.4.200.0130.00217.15
7.4.190.0040.00316.66
7.4.180.0030.00617.28
7.4.160.0070.00616.66
7.4.150.0070.00517.01
7.4.140.0050.00917.39
7.4.130.0080.00716.38
7.4.120.0110.00516.50
7.4.110.0030.00816.57
7.4.100.0080.00516.51
7.4.90.0060.00816.36
7.4.80.0060.00716.38
7.4.70.0080.00616.46
7.4.60.0060.00816.34
7.4.50.0040.00716.45
7.4.40.0030.01116.45
7.4.30.0110.00616.36
7.4.20.0060.01016.43
7.4.10.0080.00816.38
7.4.00.0070.00717.16
7.3.330.0020.00212.93
7.3.320.0050.00013.05
7.3.310.0060.00016.13
7.3.300.0040.00416.19
7.3.290.0030.00816.18
7.3.280.0080.00716.17
7.3.270.0050.00716.83
7.3.260.0090.00416.21
7.3.250.0100.00516.35
7.3.240.0110.00116.25
7.3.230.0090.00516.29
7.3.220.0000.00715.99
7.3.210.0040.00916.29
7.3.200.0080.00917.21
7.3.190.0070.00716.15
7.3.180.0070.00816.25
7.3.170.0080.00516.30
7.3.160.0080.00616.31
7.3.150.0090.00816.26
7.3.140.0080.00616.18
7.3.130.0070.00816.30
7.3.120.0070.00815.85
7.3.110.0080.00716.25
7.3.100.0080.00715.84
7.3.90.0090.00716.06
7.3.80.0030.01115.96
7.3.70.0070.00815.73
7.3.60.0090.00615.83
7.3.50.0070.00815.54
7.3.40.0050.01015.50
7.3.30.0070.00715.49
7.3.20.0080.00815.68
7.3.10.0100.00915.71
7.3.00.0100.00715.73
7.2.340.0030.00616.24
7.2.330.0090.00816.42
7.2.320.0090.01016.33
7.2.310.0060.01016.49
7.2.300.0080.00916.49
7.2.290.0120.00516.37
7.2.280.0070.01416.43
7.2.270.0090.00716.46
7.2.260.0110.00716.32
7.2.250.0080.01116.40
7.2.240.0090.01016.47
7.2.230.0090.00816.20
7.2.220.0080.01116.23
7.2.210.0090.00916.19
7.2.200.0090.00815.94
7.2.190.0070.00915.96
7.2.180.0100.00515.68
7.2.170.0080.01015.64
7.2.160.0090.00815.70
7.2.150.0120.00715.86
7.2.140.0100.00815.98
7.2.130.0070.01016.01
7.2.120.0100.00916.02
7.2.110.0130.00615.94
7.2.100.0230.00815.84
7.2.90.0310.00715.86
7.2.80.0260.00815.85
7.2.70.0260.00815.88
7.2.60.0220.00916.00
7.2.50.0250.00715.86
7.2.40.0310.00815.92
7.2.30.0280.00815.85
7.2.20.0220.00815.83
7.2.10.0210.00915.81
7.2.00.0250.00615.91
7.1.330.0090.01015.41
7.1.320.0100.00715.22
7.1.310.0110.00815.16
7.1.300.0100.00714.94
7.1.290.0090.00714.96
7.1.280.0090.00814.81
7.1.270.0170.00714.90
7.1.260.0100.00814.92
7.1.250.0090.00814.85
7.1.240.0120.01014.87
7.1.230.0170.00614.89
7.1.220.0230.00914.72
7.1.210.0250.00914.67
7.1.200.0240.00814.86
7.1.190.0240.01014.73
7.1.180.0270.00814.77
7.1.170.0290.01014.91
7.1.160.0270.00714.98
7.1.150.0280.00814.92
7.1.140.0290.00814.77
7.1.130.0260.00814.75
7.1.120.0240.00814.80
7.1.110.0230.00614.96
7.1.100.0260.00714.96
7.1.90.0300.00615.07
7.1.80.0230.00715.05
7.1.70.0160.01015.26
7.1.60.0270.00618.53
7.1.50.0240.00918.41
7.1.40.0180.00818.43
7.1.30.0180.00818.46
7.1.20.0220.00718.44
7.1.10.0180.00615.16
7.1.00.0180.00715.12
7.0.330.0130.00814.49
7.0.320.0140.00714.46
7.0.310.0320.00614.28
7.0.300.0250.00714.27
7.0.290.0310.00814.34
7.0.280.0250.00914.37
7.0.270.0250.00814.38
7.0.260.0250.00714.34
7.0.250.0250.00614.41
7.0.240.0250.00914.40
7.0.230.0260.00514.78
7.0.220.0250.00914.67
7.0.210.0250.00714.49
7.0.200.0260.00614.90
7.0.190.0210.00714.88
7.0.180.0180.00914.81
7.0.170.0210.00714.81
7.0.160.0180.00814.80
7.0.150.0180.00814.78
7.0.140.0170.00714.81
7.0.130.0160.00714.82
7.0.120.0180.00714.83
7.0.110.0170.00814.75
7.0.100.0180.00714.88
7.0.90.0160.00914.77
7.0.80.0160.00714.83
7.0.70.0150.00914.82
7.0.60.0190.00714.81
7.0.50.0120.01014.85
7.0.40.0130.01114.82
7.0.30.0150.00914.74
7.0.20.0190.00614.68
7.0.10.0150.00814.65
7.0.00.0190.00714.59
5.6.400.0140.00915.00
5.6.390.0140.00715.01
5.6.380.0140.00714.97
5.6.370.0140.00914.99
5.6.360.0130.00915.01
5.6.350.0140.00814.82
5.6.340.0110.01114.93
5.6.330.0120.00814.96
5.6.320.0100.00914.95
5.6.310.0150.00515.02
5.6.300.0090.01915.98
5.6.290.0090.01915.91
5.6.280.0120.01515.97
5.6.270.0090.01815.98
5.6.260.0110.01616.07
5.6.250.0120.01615.97
5.6.240.0110.01716.04
5.6.230.0130.01715.98
5.6.220.0100.01716.02
5.6.210.0090.01915.93
5.6.200.0120.02015.99
5.6.190.0090.01616.08
5.6.180.0130.01415.96
5.6.170.0100.01515.95
5.6.160.0100.01815.96
5.6.150.0110.01915.98
5.6.140.0110.01616.05
5.6.130.0100.01616.01
5.6.120.0120.01615.88
5.6.110.0110.01715.99
5.6.100.0120.01515.98
5.6.90.0100.02016.02
5.6.80.0120.01415.79
5.6.70.0100.01915.86
5.6.60.0120.01815.83
5.6.50.0120.01815.88
5.6.40.0120.01415.81
5.6.30.0130.01915.80
5.6.20.0090.01815.80
5.6.10.0110.02115.82
5.6.00.0070.01815.86
5.5.380.0120.01915.01
5.5.370.0140.01415.08
5.5.360.0120.01815.00
5.5.350.0120.01714.97
5.5.340.0130.01615.08
5.5.330.0120.01515.28
5.5.320.0140.01415.16
5.5.310.0110.01615.08
5.5.300.0130.01615.13
5.5.290.0140.01615.07
5.5.280.0130.01415.07
5.5.270.0130.01715.15
5.5.260.0110.01815.06
5.5.250.0100.02114.97
5.5.240.0120.01615.00
5.5.230.0150.01215.03
5.5.220.0130.01914.94
5.5.210.0120.01515.04
5.5.200.0120.01514.94
5.5.190.0140.01614.99
5.5.180.0140.01614.87
5.5.170.0170.00714.80
5.5.160.0120.01914.90
5.5.150.0120.01814.99
5.5.140.0130.01414.89
5.5.130.0140.01314.96
5.5.120.0120.01514.92
5.5.110.0130.01715.00
5.5.100.0140.01414.94
5.5.90.0100.01714.94
5.5.80.0100.01814.98
5.5.70.0120.01514.96
5.5.60.0100.01614.93
5.5.50.0110.01514.95
5.5.40.0130.01415.00
5.5.30.0120.01814.92
5.5.20.0100.01714.96
5.5.10.0100.01814.96
5.5.00.0120.01614.90
5.4.450.0060.01713.44
5.4.440.0100.01313.47
5.4.430.0090.01413.50
5.4.420.0080.01413.48
5.4.410.0110.01413.45
5.4.400.0110.01513.38
5.4.390.0110.01313.39
5.4.380.0110.01613.35
5.4.370.0090.01513.39
5.4.360.0100.01913.38
5.4.350.0090.01413.42
5.4.340.0100.01413.39
5.4.330.0120.00612.14
5.4.320.0100.01313.41
5.4.310.0090.01713.41
5.4.300.0120.01213.40
5.4.290.0090.01413.39
5.4.280.0110.01213.37
5.4.270.0090.01513.38
5.4.260.0120.01113.35
5.4.250.0100.01213.32
5.4.240.0110.01213.39
5.4.230.0110.01213.33
5.4.220.0110.01313.39
5.4.210.0100.01313.32
5.4.200.0090.01513.36
5.4.190.0070.01813.35
5.4.180.0090.01313.32
5.4.170.0110.01613.38
5.4.160.0090.01313.37
5.4.150.0090.01413.35
5.4.140.0110.01513.02
5.4.130.0120.01513.02
5.4.120.0100.01513.05
5.4.110.0080.01613.05
5.4.100.0100.01613.05
5.4.90.0100.01313.03
5.4.80.0080.01513.07
5.4.70.0100.01413.06
5.4.60.0090.01513.02
5.4.50.0100.01513.02
5.4.40.0110.01113.03
5.4.30.0100.01113.03
5.4.20.0110.01213.03
5.4.10.0080.01413.06
5.4.00.0090.01312.97
5.3.290.0100.01513.07
5.3.280.0080.01713.02
5.3.270.0080.01413.09
5.3.260.0110.01313.04
5.3.250.0090.01613.06
5.3.240.0110.01412.99
5.3.230.0100.01713.05
5.3.220.0100.01612.98
5.3.210.0100.01512.95
5.3.200.0110.01212.98
5.3.190.0090.01412.98
5.3.180.0080.01613.06
5.3.170.0090.01613.06
5.3.160.0100.01513.05
5.3.150.0090.01713.06
5.3.140.0070.01613.00
5.3.130.0080.01513.02
5.3.120.0090.01313.03
5.3.110.0090.01313.03
5.3.100.0100.01613.02
5.3.90.0090.01412.96
5.3.80.0090.01412.90
5.3.70.0090.01512.91
5.3.60.0110.01512.97
5.3.50.0090.01712.91
5.3.40.0080.01412.92
5.3.30.0080.01612.97
5.3.20.0070.01312.92
5.3.10.0070.01512.88
5.3.00.0090.01112.82

preferences:
39.49 ms | 401 KiB | 5 Q