3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $pos = 0; public $str; function __construct($str) { $this->str = $str; $this->current = $this->lookAhead(); } function isLineBreak() { if ("\r" !== $this->current && "\n" !== $this->current) { return false; } $char = $this->current; do { $brk = ("\n" === $char); $char = $this->lookAhead(); switch ($char) { case " ": return false; case "\n": if ($brk) { return true; } break; default: return $brk; } } while (true); } function lookAhead() { return mb_strcut($this->str, $this->pos++, 1); } } function crlf($str) { $foo = new Foo($str); return $foo->isLineBreak(); } var_dump(crlf("\r\n")); var_dump(crlf("\r\n ")); var_dump(crlf("\r\r\n")); var_dump(crlf("\n\n")); var_dump(crlf("\n\n ")); var_dump(crlf("\r\n\n")); var_dump(crlf("\r\n\n ")); var_dump(crlf("\r\n8")); var_dump(crlf("\n")); var_dump(crlf("\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)
8.3.60.0190.00016.88
8.3.50.0190.00921.98
8.3.40.0140.00718.88
8.3.30.0070.00719.05
8.3.20.0070.00020.38
8.3.10.0000.00823.70
8.3.00.0040.00719.38
8.2.180.0120.00318.41
8.2.170.0090.00922.96
8.2.160.0070.01020.39
8.2.150.0080.00824.18
8.2.140.0050.00324.66
8.2.130.0030.00626.16
8.2.120.0000.00722.08
8.2.110.0080.00022.27
8.2.100.0120.00018.03
8.2.90.0040.00419.17
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0000.00918.04
8.2.50.0030.00718.07
8.2.40.0000.00818.22
8.2.30.0040.00418.01
8.2.20.0070.00017.88
8.2.10.0070.00017.87
8.2.00.0030.00617.79
8.1.280.0100.01025.92
8.1.270.0050.00322.04
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0090.00023.79
8.1.230.0050.00519.08
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00317.38
8.1.190.0040.00417.51
8.1.180.0030.00618.10
8.1.170.0030.00718.50
8.1.160.0000.00822.02
8.1.150.0000.00718.69
8.1.140.0030.00617.44
8.1.130.0000.00717.84
8.1.120.0000.00717.43
8.1.110.0000.00917.45
8.1.100.0000.00817.47
8.1.90.0070.00017.48
8.1.80.0080.00017.52
8.1.70.0000.00717.45
8.1.60.0000.00817.58
8.1.50.0030.00617.50
8.1.40.0000.00817.55
8.1.30.0080.00017.63
8.1.20.0050.00217.53
8.1.10.0040.00417.58
8.1.00.0040.00417.55
8.0.300.0040.00418.77
8.0.290.0020.00517.30
8.0.280.0040.00418.57
8.0.270.0040.00417.33
8.0.260.0000.00616.88
8.0.250.0030.00317.09
8.0.240.0080.00016.98
8.0.230.0040.00617.06
8.0.220.0070.00016.98
8.0.210.0040.00416.97
8.0.200.0030.00317.14
8.0.190.0030.00616.99
8.0.180.0000.01116.95
8.0.170.0000.00816.91
8.0.160.0070.00317.04
8.0.150.0000.00716.95
8.0.140.0000.00816.98
8.0.130.0000.00713.42
8.0.120.0000.00817.01
8.0.110.0070.00016.88
8.0.100.0070.00016.91
8.0.90.0050.00317.02
8.0.80.0060.00816.97
8.0.70.0000.00717.02
8.0.60.0080.00016.86
8.0.50.0040.00416.84
8.0.30.0130.00617.24
8.0.20.0060.01117.40
8.0.10.0000.00817.12
8.0.00.0130.00916.90
7.4.330.0000.00515.00
7.4.320.0030.00316.52
7.4.300.0070.00016.46
7.4.290.0070.00016.59
7.4.280.0030.00316.54
7.4.270.0030.00316.59
7.4.260.0030.00316.58
7.4.250.0050.00316.52
7.4.240.0030.00316.53
7.4.230.0030.00316.35
7.4.220.0190.00316.64
7.4.210.0030.01216.63
7.4.200.0000.00716.68
7.4.190.0040.00416.70
7.4.160.0080.00816.63
7.4.150.0040.01417.40
7.4.140.0110.00617.86
7.4.130.0120.01316.52
7.4.120.0080.01116.46
7.4.110.0130.00316.45
7.4.100.0090.00916.51
7.4.90.0070.01016.42
7.4.80.0060.01119.39
7.4.70.0060.01116.53
7.4.60.0100.00716.52
7.4.50.0000.00616.38
7.4.40.0090.00322.77
7.4.30.0060.01116.73
7.4.00.0050.01014.96
7.3.330.0000.00513.44
7.3.320.0050.00313.27
7.3.310.0070.00016.54
7.3.300.0030.00316.44
7.3.290.0090.01216.40
7.3.280.0090.00916.45
7.3.270.0060.01117.40
7.3.260.0060.01116.70
7.3.250.0080.00916.54
7.3.240.0030.01316.49
7.3.230.0130.00616.43
7.3.210.0140.00316.45
7.3.200.0150.00419.39
7.3.190.0090.01416.44
7.3.180.0120.00316.29
7.3.170.0070.01016.37
7.3.160.0130.00416.41
7.3.120.0080.00414.71
7.3.110.0140.00314.75
7.3.100.0130.00615.03
7.3.90.0040.00814.94
7.3.80.0100.00714.82
7.3.70.0090.00614.84
7.3.60.0030.01214.54
7.3.50.0090.00614.86
7.3.40.0090.00914.83
7.3.30.0100.00714.64
7.3.20.0080.00816.81
7.3.10.0040.01516.46
7.3.00.0110.00016.62
7.2.330.0140.00416.73
7.2.320.0030.01416.43
7.2.310.0100.00716.73
7.2.300.0060.01116.63
7.2.290.0120.00616.80
7.2.250.0060.01214.81
7.2.240.0070.01114.98
7.2.230.0000.01515.23
7.2.220.0030.01014.91
7.2.210.0030.01314.87
7.2.200.0080.00415.14
7.2.190.0000.01315.27
7.2.180.0030.01215.07
7.2.170.0030.01015.03
7.2.160.0030.00915.07
7.2.150.0120.00316.71
7.2.140.0090.00917.18
7.2.130.0070.01116.97
7.2.120.0060.00916.98
7.2.110.0000.01816.94
7.2.100.0120.00616.61
7.2.90.0100.00716.84
7.2.80.0040.01517.17
7.2.70.0070.00716.93
7.2.60.0000.01416.98
7.2.50.0030.01316.81
7.2.40.0150.00316.84
7.2.30.0070.00417.11
7.2.20.0030.01016.93
7.2.10.0070.00717.11
7.2.00.0000.01617.02
7.1.330.0080.00815.82
7.1.320.0000.01115.91
7.1.310.0030.00515.81
7.1.300.0140.00015.77
7.1.290.0070.00715.76
7.1.280.0000.01215.55
7.1.270.0110.00315.77
7.1.260.0100.00715.90
7.1.250.0030.00715.93
7.1.240.0100.00615.56
7.1.230.0030.01415.84
7.1.220.0040.00715.89
7.1.210.0070.00715.84
7.1.200.0000.01015.46
7.1.190.0080.00615.93
7.1.180.0030.01015.67
7.1.170.0080.00415.68
7.1.160.0060.00915.77
7.1.150.0040.00815.48
7.1.140.0040.00415.89
7.1.130.0120.00615.75
7.1.120.0090.00015.93
7.1.110.0040.00815.89
7.1.100.0030.00615.85
7.1.90.0040.00415.57
7.1.80.0030.01015.91
7.1.70.0020.00716.48
7.1.60.0060.01317.63
7.1.50.0110.00916.42
7.1.40.0030.01015.60
7.1.30.0070.00715.81
7.1.20.0040.00815.27
7.1.10.0000.01315.87
7.1.00.0090.03518.90
7.0.330.0090.00915.44
7.0.320.0060.00915.46
7.0.310.0030.01315.45
7.0.300.0040.01115.61
7.0.290.0060.00615.55
7.0.280.0000.01615.66
7.0.270.0100.00015.41
7.0.260.0000.01115.37
7.0.250.0030.00915.29
7.0.240.0030.01115.52
7.0.230.0040.00415.30
7.0.220.0000.01215.63
7.0.210.0040.00815.58
7.0.200.0070.00716.26
7.0.190.0060.00915.35
7.0.180.0040.01115.45
7.0.170.0080.00415.47
7.0.160.0080.00315.43
7.0.150.0030.00915.38
7.0.140.0030.04218.71
7.0.130.0060.00915.46
7.0.120.0140.03718.86
7.0.110.0020.02918.85
7.0.100.0030.04318.72
7.0.90.0080.03818.66
7.0.80.0060.03318.78
7.0.70.0000.04718.80
7.0.60.0050.03718.84
7.0.50.0030.02518.78
7.0.40.0020.03116.83
7.0.30.0050.02216.62
7.0.20.0070.02516.78
7.0.10.0070.02316.78
7.0.00.0050.02516.82
5.6.400.0060.01214.43
5.6.390.0030.00914.24
5.6.380.0040.01114.44
5.6.370.0040.00914.46
5.6.360.0070.01014.50
5.6.350.0090.00314.59
5.6.340.0000.01414.56
5.6.330.0060.00814.69
5.6.320.0030.01014.38
5.6.310.0060.00314.54
5.6.300.0060.00614.70
5.6.290.0040.00414.34
5.6.280.0100.03217.65
5.6.270.0100.02217.69
5.6.260.0080.02017.67
5.6.250.0000.03417.66
5.6.240.0100.02217.67
5.6.230.0030.02717.80
5.6.220.0030.03817.52
5.6.210.0060.02517.61
5.6.200.0070.02317.88
5.6.190.0080.02117.64
5.6.180.0100.01817.54
5.6.170.0040.02417.64
5.6.160.0040.02217.45
5.6.150.0050.01817.55
5.6.140.0030.02217.60
5.6.130.0050.02117.60
5.6.120.0090.01617.80
5.6.110.0080.02117.75
5.6.100.0050.03917.64
5.6.90.0100.04017.68
5.6.80.0060.04117.21
5.6.70.0090.03317.22
5.6.60.0030.02417.35
5.6.50.0050.04017.42
5.6.40.0070.04117.20
5.6.30.0030.03317.08
5.6.20.0100.02017.31
5.6.10.0050.01817.41
5.6.00.0050.04417.27
5.5.380.0020.02416.01
5.5.370.0050.02416.19
5.5.360.0100.03015.98
5.5.350.0020.02716.11
5.5.340.0030.02416.27
5.5.330.0070.02216.00
5.5.320.0030.02416.24
5.5.310.0030.02316.10
5.5.300.0030.02016.26
5.5.290.0030.01916.38
5.5.280.0060.01716.16
5.5.270.0050.01916.07
5.5.260.0000.03016.30
5.5.250.0020.03116.18
5.5.240.0020.03515.88
5.5.230.0030.02315.76
5.5.220.0020.02216.11
5.5.210.0080.05115.67
5.5.200.0050.03215.79
5.5.190.0000.02315.90
5.5.180.0020.02215.81
5.5.170.0090.00914.48
5.5.160.0040.03015.83
5.5.150.0020.02716.00
5.5.140.0030.04715.85
5.5.130.0050.04115.70
5.5.120.0050.02815.88
5.5.110.0020.02215.96
5.5.100.0050.02115.74
5.5.90.0050.03115.76
5.5.80.0030.02015.79
5.5.70.0050.02015.82
5.5.60.0020.03515.76
5.5.50.0050.02115.88
5.5.40.0030.03415.74
5.5.30.0030.04015.77
5.5.20.0100.01815.89
5.5.10.0000.02415.62
5.5.00.0040.02515.79
5.4.450.0060.02515.90
5.4.440.0000.02215.92
5.4.430.0050.03215.89
5.4.420.0030.02516.04
5.4.410.0030.03715.91
5.4.400.0020.03015.74
5.4.390.0070.02215.81
5.4.380.0060.02615.71
5.4.370.0060.01615.75
5.4.360.0030.02215.74
5.4.350.0040.04015.87
5.4.340.0050.02015.74
5.4.330.0060.00612.54
5.4.320.0030.03615.81
5.4.310.0010.03915.74
5.4.300.0050.03915.78
5.4.290.0070.01815.79
5.4.280.0040.03515.74
5.4.270.0030.01915.81
5.4.260.0020.02215.73
5.4.250.0020.03015.81
5.4.240.0020.02715.81
5.4.230.0020.04215.88
5.4.220.0020.02915.81
5.4.210.0070.01615.81
5.4.200.0020.02115.81
5.4.190.0050.02715.81
5.4.180.0020.02015.83
5.4.170.0000.02715.74
5.4.160.0070.02315.72
5.4.150.0030.02415.81
5.4.140.0000.02714.52
5.4.130.0030.02114.54
5.4.120.0040.01814.54
5.4.110.0030.02014.59
5.4.100.0070.01514.42
5.4.90.0020.02414.46
5.4.80.0020.02114.47
5.4.70.0030.02714.45
5.4.60.0020.02014.42
5.4.50.0080.01514.56
5.4.40.0050.02214.54
5.4.30.0030.02114.34
5.4.20.0040.02514.51
5.4.10.0030.03114.55
5.4.00.0010.02314.26
5.3.290.0020.03513.65
5.3.280.0060.03113.58
5.3.270.0050.02113.62
5.3.260.0000.02613.57
5.3.250.0030.02013.58
5.3.240.0020.02613.55
5.3.230.0000.03013.62
5.3.220.0050.02713.60
5.3.210.0050.02013.56
5.3.200.0030.03313.63
5.3.190.0080.03213.62
5.3.180.0020.02313.56
5.3.170.0060.02813.55
5.3.160.0070.02813.56
5.3.150.0020.03413.62
5.3.140.0030.01813.55
5.3.130.0000.02313.62
5.3.120.0030.02013.56
5.3.110.0050.02513.66
5.3.100.0000.03513.31
5.3.90.0120.01313.29
5.3.80.0020.02213.29
5.3.70.0050.03313.29
5.3.60.0030.02813.27
5.3.50.0030.01913.23
5.3.40.0040.01713.26
5.3.30.0020.03113.22
5.3.20.0060.02913.13
5.3.10.0020.02613.09
5.3.00.0070.02513.14
5.2.170.0000.03011.18
5.2.160.0000.03011.12
5.2.150.0000.03011.17
5.2.140.0070.04711.17
5.2.130.0030.02711.20
5.2.120.0000.05011.11
5.2.110.0030.02711.12
5.2.100.0000.03710.97
5.2.90.0000.02711.25
5.2.80.0000.03011.12
5.2.70.0030.02711.18
5.2.60.0000.03010.92
5.2.50.0100.02311.11
5.2.40.0000.03710.98
5.2.30.0000.03711.08
5.2.20.0000.05011.20
5.2.10.0000.06010.85
5.2.00.0000.03010.80
5.1.60.0100.0209.99
5.1.50.0000.02710.18
5.1.40.0030.0439.82
5.1.30.0030.05010.21
5.1.20.0070.03010.37
5.1.10.0070.05010.08
5.1.00.0030.02710.24
5.0.50.0030.0339.81
5.0.40.0070.0309.81
5.0.30.0030.0509.81
5.0.20.0000.0379.81
5.0.10.0000.0209.81
5.0.00.0000.0579.81
4.4.90.0030.0239.81
4.4.80.0030.0109.81
4.4.70.0030.0209.81
4.4.60.0030.0339.81
4.4.50.0000.0139.81
4.4.40.0030.0309.81
4.4.30.0000.0139.81
4.4.20.0030.0279.81
4.4.10.0000.0239.81
4.4.00.0000.0379.81
4.3.110.0030.0309.81
4.3.100.0000.0279.81
4.3.90.0000.0139.81
4.3.80.0000.0539.81
4.3.70.0030.0109.81
4.3.60.0000.0309.81
4.3.50.0000.0179.81
4.3.40.0000.0439.81
4.3.30.0070.0309.81
4.3.20.0030.0309.81
4.3.10.0030.0279.81
4.3.00.0070.0279.81

preferences:
49.27 ms | 401 KiB | 5 Q