3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーティーエッフček等々'; $var = 'íč'; $pos = strpos($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)
8.3.60.0140.00718.23
8.3.50.0110.00922.03
8.3.40.0120.00318.56
8.3.30.0130.00318.79
8.3.20.0090.00020.04
8.3.10.0030.00620.54
8.3.00.0080.00017.50
8.2.180.0100.00318.18
8.2.170.0040.01122.96
8.2.160.0030.01020.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00722.09
8.2.110.0080.00022.11
8.2.100.0090.00319.39
8.2.90.0040.00419.05
8.2.80.0030.00517.97
8.2.70.0080.00017.50
8.2.60.0020.00518.04
8.2.50.0080.00018.07
8.2.40.0000.00818.03
8.2.30.0000.00719.18
8.2.20.0040.00417.48
8.2.10.0070.00017.97
8.2.00.0030.00517.55
8.1.280.0180.00025.92
8.1.270.0060.00322.14
8.1.260.0050.00226.35
8.1.250.0080.00028.09
8.1.240.0060.00322.05
8.1.230.0040.00719.16
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0110.00516.87
8.1.190.0050.00317.11
8.1.180.0000.00718.10
8.1.170.0110.00018.46
8.1.160.0050.00221.97
8.1.150.0000.00718.73
8.1.140.0060.00317.38
8.1.130.0000.00717.81
8.1.120.0000.00717.44
8.1.110.0080.00017.38
8.1.100.0040.00417.36
8.1.90.0070.00017.34
8.1.80.0030.00317.41
8.1.70.0040.00417.27
8.1.60.0080.00017.58
8.1.50.0030.00517.35
8.1.40.0040.00417.36
8.1.30.0030.00517.53
8.1.20.0050.00217.66
8.1.10.0040.00417.39
8.1.00.0000.00717.37
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00718.38
8.0.270.0030.00317.11
8.0.260.0000.00617.22
8.0.250.0070.00016.88
8.0.240.0030.00316.79
8.0.230.0070.00016.92
8.0.220.0030.00316.84
8.0.210.0070.00016.66
8.0.200.0030.00316.76
8.0.190.0080.00016.79
8.0.180.0070.00016.73
8.0.170.0060.00316.75
8.0.160.0070.00016.78
8.0.150.0000.00716.65
8.0.140.0040.00416.78
8.0.130.0000.00513.18
8.0.120.0040.00416.67
8.0.110.0060.00316.73
8.0.100.0000.00816.61
8.0.90.0040.00416.64
8.0.80.0090.00616.75
8.0.70.0000.00816.80
8.0.60.0050.00216.70
8.0.50.0040.00416.77
8.0.30.0150.00716.82
8.0.20.0080.01017.40
8.0.10.0040.00416.95
8.0.00.0130.00416.72
7.4.330.0050.00015.02
7.4.320.0000.00616.52
7.4.300.0040.00416.50
7.4.290.0000.00716.57
7.4.280.0090.00016.38
7.4.270.0000.00716.50
7.4.260.0080.00016.56
7.4.250.0040.00416.60
7.4.240.0000.00716.60
7.4.230.0070.00016.63
7.4.220.0060.01216.38
7.4.210.0090.00816.44
7.4.200.0000.00716.54
7.4.160.0040.01116.50
7.4.150.0070.01017.40
7.4.140.0030.01317.86
7.4.130.0100.01016.35
7.4.120.0120.00916.53
7.4.110.0060.00916.51
7.4.100.0090.01316.53
7.4.90.0160.00616.30
7.4.80.0160.00618.80
7.4.70.0130.00316.39
7.4.60.0100.00716.48
7.4.50.0040.00416.23
7.4.40.0130.00316.41
7.4.30.0090.00616.30
7.4.10.0070.00915.00
7.4.00.0060.01014.74
7.3.330.0030.00313.17
7.3.320.0050.00013.03
7.3.310.0000.00716.12
7.3.300.0060.00016.03
7.3.290.0130.00316.19
7.3.280.0050.01116.25
7.3.270.0120.00617.40
7.3.260.0140.00316.44
7.3.250.0120.00916.42
7.3.240.0140.00716.50
7.3.230.0080.00816.42
7.3.210.0130.00416.35
7.3.200.0080.01119.39
7.3.190.0190.00316.15
7.3.180.0040.01416.25
7.3.170.0120.00316.43
7.3.160.0030.01316.07
7.3.130.0080.01014.83
7.3.120.0070.00914.79
7.3.110.0090.00914.78
7.3.100.0060.00614.76
7.3.90.0040.01414.71
7.3.80.0050.00514.84
7.3.70.0050.00814.66
7.3.60.0060.00914.61
7.3.50.0090.00614.65
7.3.40.0050.00714.68
7.3.30.0050.01014.47
7.3.20.0090.00516.56
7.3.10.0060.00716.45
7.3.00.0070.00816.52
7.2.330.0090.00916.66
7.2.320.0040.01216.36
7.2.310.0060.00916.60
7.2.300.0100.01316.73
7.2.290.0080.00816.63
7.2.260.0060.00914.87
7.2.250.0060.01214.90
7.2.240.0050.01014.88
7.2.230.0090.00814.88
7.2.220.0060.01014.90
7.2.210.0060.00814.97
7.2.200.0050.00614.96
7.2.190.0050.00914.95
7.2.180.0060.00714.87
7.2.170.0060.00814.96
7.2.160.0030.01114.74
7.2.150.0050.00816.88
7.2.140.0060.00816.67
7.2.130.0040.01116.73
7.2.120.0050.00816.78
7.2.110.0090.00716.80
7.2.100.0040.01216.90
7.2.90.0040.01116.75
7.2.80.0080.00716.81
7.2.70.0070.00716.79
7.2.60.0030.01216.84
7.2.50.0050.01016.82
7.2.40.0100.00416.75
7.2.30.0070.00616.84
7.2.20.0060.00916.64
7.2.10.0080.00816.69
7.2.00.0050.00817.40
7.1.330.0060.00815.85
7.1.320.0040.01115.69
7.1.310.0070.00715.79
7.1.300.0020.01315.79
7.1.290.0090.00815.67
7.1.280.0030.00915.79
7.1.270.0100.00315.64
7.1.260.0080.00315.71
7.1.250.0060.00715.82
7.1.240.0080.00715.63
7.1.230.0060.00915.64
7.1.220.0070.00515.67
7.1.210.0050.00815.87
7.1.200.0050.00915.75
7.1.190.0040.00915.82
7.1.180.0040.00715.72
7.1.170.0050.00715.65
7.1.160.0080.00415.72
7.1.150.0040.00815.73
7.1.140.0070.00715.74
7.1.130.0080.00715.84
7.1.120.0080.00515.81
7.1.110.0020.01215.86
7.1.100.0060.00616.33
7.1.90.0060.00515.86
7.1.80.0030.00915.68
7.1.70.0040.00816.06
7.1.60.0060.00916.59
7.1.50.0050.01016.15
7.1.40.0070.00415.64
7.1.30.0070.00815.79
7.1.20.0070.00715.60
7.1.10.0020.01015.73
7.1.00.0020.02717.30
7.0.330.0020.01015.29
7.0.320.0050.00715.25
7.0.310.0060.00615.25
7.0.300.0070.00515.41
7.0.290.0100.00315.32
7.0.280.0050.00915.41
7.0.270.0090.00515.36
7.0.260.0040.00715.25
7.0.250.0040.00815.25
7.0.240.0050.00715.40
7.0.230.0050.00915.46
7.0.220.0060.00815.29
7.0.210.0050.00915.23
7.0.200.0050.00915.52
7.0.190.0050.00815.32
7.0.180.0040.00515.42
7.0.170.0040.00715.30
7.0.160.0040.00915.33
7.0.150.0060.01015.36
7.0.140.0050.02417.04
7.0.130.0060.00515.15
7.0.120.0080.00515.28
7.0.110.0050.01916.44
7.0.100.0100.02216.50
7.0.90.0070.02616.45
7.0.80.0070.02116.34
7.0.70.0090.02416.48
7.0.60.0070.02116.46
7.0.50.0070.02516.50
7.0.40.0050.02815.06
7.0.30.0120.02114.94
7.0.20.0060.02514.93
7.0.10.0070.02314.96
7.0.00.0070.02014.91
5.6.400.0050.00914.22
5.6.390.0040.01014.15
5.6.380.0080.00514.05
5.6.370.0080.00814.44
5.6.360.0030.01114.05
5.6.350.0050.01014.21
5.6.340.0040.00914.20
5.6.330.0080.00514.17
5.6.320.0050.01014.32
5.6.310.0050.00914.20
5.6.300.0040.00714.32
5.6.290.0050.01014.15
5.6.280.0060.02316.02
5.6.270.0080.00414.26
5.6.260.0070.02515.89
5.6.250.0080.01715.73
5.6.240.0100.02515.80
5.6.230.0070.02315.76
5.6.220.0090.02415.86
5.6.210.0060.02015.88
5.6.200.0060.02615.75
5.6.190.0050.03115.88
5.6.180.0060.02115.88
5.6.170.0110.02215.87
5.6.160.0090.02815.82
5.6.150.0090.02515.73
5.6.140.0090.02415.79
5.6.130.0070.02315.83
5.6.120.0060.02615.73
5.6.110.0080.02615.83
5.6.100.0050.02515.66
5.6.90.0130.02415.90
5.6.80.0110.02015.80
5.6.70.0080.02515.47
5.6.60.0120.02415.73
5.6.50.0130.02415.69
5.6.40.0150.02815.71
5.6.30.0160.02415.61
5.6.20.0150.02515.57
5.6.10.0170.01315.62
5.6.00.0150.02115.64
5.5.380.0050.01814.32
5.5.370.0070.02314.20
5.5.360.0050.02414.19
5.5.350.0050.01814.17
5.5.340.0060.02414.25
5.5.330.0070.01914.25
5.5.320.0060.02714.32
5.5.310.0040.02714.49
5.5.300.0040.02714.30
5.5.290.0080.02314.33
5.5.280.0050.02614.38
5.5.270.0070.02514.35
5.5.260.0050.02714.31
5.5.250.0070.02414.18
5.5.240.0060.02514.05
5.5.230.0090.02414.01
5.5.220.0120.02114.05
5.5.210.0060.02314.11
5.5.200.0060.02514.19
5.5.190.0080.01414.10
5.5.180.0040.02614.04
5.5.170.0100.00512.93
5.5.160.0070.02414.20
5.5.150.0090.02214.13
5.5.140.0110.02314.10
5.5.130.0090.01414.16
5.5.120.0040.02414.08
5.5.110.0080.01414.08
5.5.100.0050.02514.14
5.5.90.0040.01513.93
5.5.80.0040.02613.95
5.5.70.0080.02414.08
5.5.60.0090.01613.83
5.5.50.0100.02113.99
5.5.40.0060.01713.84
5.5.30.0040.02714.00
5.5.20.0040.01513.92
5.5.10.0080.02314.18
5.5.00.0050.02614.05
5.4.450.0070.02412.98
5.4.440.0100.02313.00
5.4.430.0100.02313.04
5.4.420.0070.02412.94
5.4.410.0080.02012.93
5.4.400.0040.02412.93
5.4.390.0080.01412.83
5.4.380.0100.02112.92
5.4.370.0120.02012.91
5.4.360.0110.02212.90
5.4.350.0070.01612.72
5.4.340.0110.01512.96
5.4.330.0120.00610.93
5.4.320.0050.02613.00
5.4.310.0100.02112.75
5.4.300.0120.02112.88
5.4.290.0040.02212.89
5.4.280.0080.02112.78
5.4.270.0110.01312.91
5.4.260.0070.02212.87
5.4.250.0110.01812.72
5.4.240.0050.02112.89
5.4.230.0030.02012.76
5.4.220.0090.02112.83
5.4.210.0080.01512.84
5.4.200.0060.01812.88
5.4.190.0100.01112.83
5.4.180.0070.02112.85
5.4.170.0050.02512.88
5.4.160.0050.02312.87
5.4.150.0060.02512.90
5.4.140.0090.02412.27
5.4.130.0030.02512.12
5.4.120.0090.02212.21
5.4.110.0050.01512.17
5.4.100.0110.00712.09
5.4.90.0070.01412.32
5.4.80.0060.01312.15
5.4.70.0030.01412.30
5.4.60.0040.01412.23
5.4.50.0070.01112.14
5.4.40.0040.01112.20
5.4.30.0050.01112.18
5.4.20.0020.01612.26
5.4.10.0050.01312.22
5.4.00.0050.01212.03
5.3.290.0080.04012.58
5.3.280.0130.03712.43
5.3.270.0030.04212.63
5.3.260.0100.04512.63
5.3.250.0050.04212.55
5.3.240.0050.04012.49
5.3.230.0090.03912.47
5.3.220.0110.03712.34
5.3.210.0120.01312.23
5.3.200.0080.03812.30
5.3.190.0030.02412.28
5.3.180.0040.02212.40
5.3.170.0100.02112.55
5.3.160.0080.02112.60
5.3.150.0110.02012.45
5.3.140.0150.01912.44
5.3.130.0060.01812.45
5.3.120.0050.02512.36
5.3.110.0070.02312.28
5.3.100.0090.01512.26
5.3.90.0070.01812.23
5.3.80.0090.01911.92
5.3.70.0060.02612.12
5.3.60.0120.02012.07
5.3.50.0040.02111.88
5.3.40.0170.01712.02
5.3.30.0080.02311.97
5.3.20.0110.01711.93
5.3.10.0060.03311.78
5.3.00.0040.01911.79
5.2.170.0070.01510.89
5.2.160.0180.01210.89
5.2.150.0020.01710.89
5.2.140.0050.02110.89
5.2.130.0070.01510.89
5.2.120.0070.01810.89
5.2.110.0020.01810.89
5.2.100.0010.01910.89
5.2.90.0050.01610.89
5.2.80.0050.01710.89
5.2.70.0020.01910.89
5.2.60.0050.01810.89
5.2.50.0070.01510.89
5.2.40.0050.01210.89
5.2.30.0040.01710.89
5.2.20.0020.01810.89
5.2.10.0050.01210.89
5.2.00.0040.01510.89
5.1.60.0030.01410.89
5.1.50.0020.01410.89
5.1.40.0010.01610.89
5.1.30.0020.01510.89
5.1.20.0000.01710.89
5.1.10.0050.01510.89
5.1.00.0020.01510.89
5.0.50.0060.01210.89
5.0.40.0020.01310.89
5.0.30.0040.02010.89
5.0.20.0040.01310.89
5.0.10.0040.01010.89
5.0.00.0030.01510.89
4.4.90.0020.00910.89
4.4.80.0000.01110.89
4.4.70.0020.00810.89
4.4.60.0040.00910.89
4.4.50.0030.00810.89
4.4.40.0000.01410.89
4.4.30.0010.01010.89
4.4.20.0020.00810.89
4.4.10.0020.01510.89
4.4.00.0030.01710.89
4.3.110.0010.01110.89
4.3.100.0020.00910.89
4.3.90.0020.00810.89
4.3.80.0020.01510.89
4.3.70.0010.01010.89
4.3.60.0000.01110.89
4.3.50.0030.00810.89
4.3.40.0020.01410.89
4.3.30.0040.01510.89
4.3.20.0050.00510.89
4.3.10.0060.00810.89
4.3.00.0030.00810.89

preferences:
46.71 ms | 401 KiB | 5 Q