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kpobococ/function.rfc3986_validate_uri.php

Last active July 27, 2021 13:13
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  1. kpobococ revised this gist Dec 5, 2020. 1 changed file with 2 additions and 0 deletions.
    2 changes: 2 additions & 0 deletions function.rfc3986_validate_uri.php
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    Original file line number Diff line number Diff line change
    @@ -1,3 +1,5 @@
    <?php

    function rfc3986_validate_uri($uri)
    {
    // Play around with this regexp online:
  2. kpobococ revised this gist Dec 5, 2020. 1 changed file with 8 additions and 6 deletions.
    14 changes: 8 additions & 6 deletions function.rfc3986_validate_uri.php
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    Original file line number Diff line number Diff line change
    @@ -1,16 +1,18 @@
    <?php

    function rfc3986_validate_uri($uri)
    {
    // Play around with this regexp online:
    // http://regex101.com/r/hZ5gU9/1

    // Links to relevant RFC documents:
    // RFC 3986: http://tools.ietf.org/html/rfc3986 (URI scheme)
    // RFC 2234: http://tools.ietf.org/html/rfc2234#section-6.1 (ABNF notation)
    $regex = '/

    # URI scheme RFC 3986 (http://tools.ietf.org/html/rfc3986)
    # URI scheme RFC 3986

    (?(DEFINE)
    # ABNF notation of RFC 2234 (http://tools.ietf.org/html/rfc2234#section-6.1)

    # ABNF notation of RFC 2234

    (?<ALPHA> [\x41-\x5A\x61-\x7A] ) # Latin character (A-Z, a-z)
    (?<CR> \x0D ) # Carriage return (\r)
  3. kpobococ renamed this gist Dec 1, 2014. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion gistfile1.txt → function.rfc3986_validate_uri.php
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    Original file line number Diff line number Diff line change
    @@ -1,6 +1,6 @@
    <?php

    function validate_rfc3986_uri($uri)
    function rfc3986_validate_uri($uri)
    {
    // Play around with this regexp online:
    // http://regex101.com/r/hZ5gU9/1
  4. kpobococ created this gist Dec 1, 2014.
    113 changes: 113 additions & 0 deletions gistfile1.txt
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,113 @@
    <?php

    function validate_rfc3986_uri($uri)
    {
    // Play around with this regexp online:
    // http://regex101.com/r/hZ5gU9/1
    $regex = '/

    # URI scheme RFC 3986 (http://tools.ietf.org/html/rfc3986)

    (?(DEFINE)

    # ABNF notation of RFC 2234 (http://tools.ietf.org/html/rfc2234#section-6.1)

    (?<ALPHA> [\x41-\x5A\x61-\x7A] ) # Latin character (A-Z, a-z)
    (?<CR> \x0D ) # Carriage return (\r)
    (?<DIGIT> [\x30-\x39] ) # Decimal number (0-9)
    (?<DQUOTE> \x22 ) # Double quote (")
    (?<HEXDIG> (?&DIGIT) | [\x41-\x46] ) # Hexadecimal number (0-9, A-F)
    (?<LF> \x0A ) # Line feed (\n)
    (?<SP> \x20 ) # Space

    # RFC 3986 body

    (?<uri> (?&scheme) \: (?&hier_part) (?: \? (?&query) )? (?: \# (?&fragment) )? )

    (?<hier_part> \/\/ (?&authority) (?&path_abempty)
    | (?&path_absolute)
    | (?&path_rootless)
    | (?&path_empty) )

    (?<uri_reference> (?&uri) | (?&relative_ref) )

    (?<absolute_uri> (?&scheme) \: (?&hier_part) (?: \? (?&query) )? )

    (?<relative_ref> (?&relative_part) (?: \? (?&query) )? (?: \# (?&fragment) )? )

    (?<relative_part> \/\/ (?&authority) (?&path_abempty)
    | (?&path_absolute)
    | (?&path_noscheme)
    | (?&path_empty) )

    (?<scheme> (?&ALPHA) (?: (?&ALPHA) | (?&DIGIT) | \+ | \- | \. )* )

    (?<authority> (?: (?&userinfo) \@ )? (?&host) (?: \: (?&port) )? )
    (?<userinfo> (?: (?&unreserved) | (?&pct_encoded) | (?&sub_delims) | \: )* )
    (?<host> (?&ip_literal) | (?&ipv4_address) | (?&reg_name) )
    (?<port> (?&DIGIT)* )

    (?<ip_literal> \[ (?: (?&ipv6_address) | (?&ipv_future) ) \] )

    (?<ipv_future> \x76 (?&HEXDIG)+ \. (?: (?&unreserved) | (?&sub_delims) | \: )+ )

    (?<ipv6_address> (?: (?&h16) \: ){6} (?&ls32)
    | \:\: (?: (?&h16) \: ){5} (?&ls32)
    | (?&h16)? \:\: (?: (?&h16) \: ){4} (?&ls32)
    | (?: (?: (?&h16) \: ){0,1} (?&h16) )? \:\: (?: (?&h16) \: ){3} (?&ls32)
    | (?: (?: (?&h16) \: ){0,2} (?&h16) )? \:\: (?: (?&h16) \: ){2} (?&ls32)
    | (?: (?: (?&h16) \: ){0,3} (?&h16) )? \:\: (?&h16) \: (?&ls32)
    | (?: (?: (?&h16) \: ){0,4} (?&h16) )? \:\: (?&ls32)
    | (?: (?: (?&h16) \: ){0,5} (?&h16) )? \:\: (?&h16)
    | (?: (?: (?&h16) \: ){0,6} (?&h16) )? \:\: )

    (?<h16> (?&HEXDIG){1,4} )
    (?<ls32> (?: (?&h16) \: (?&h16) ) | (?&ipv4_address) )
    (?<ipv4_address> (?&dec_octet) \. (?&dec_octet) \. (?&dec_octet) \. (?&dec_octet) )

    (?<dec_octet> (?&DIGIT)
    | [\x31-\x39] (?&DIGIT)
    | \x31 (?&DIGIT){2}
    | \x32 [\x30-\x34] (?&DIGIT)
    | \x32\x35 [\x30-\x35] )

    (?<reg_name> (?: (?&unreserved) | (?&pct_encoded) | (?&sub_delims) )* )

    (?<path> (?&path_abempty)
    | (?&path_absolute)
    | (?&path_noscheme)
    | (?&path_rootless)
    | (?&path_empty) )

    (?<path_abempty> (?: \/ (?&segment) )* )
    (?<path_absolute> \/ (?: (?&segment_nz) (?: \/ (?&segment) )* )? )
    (?<path_noscheme> (?&segment_nz_nc) (?: \/ (?&segment) )* )
    (?<path_rootless> (?&segment_nz) (?: \/ (?&segment) )* )
    (?<path_empty> (?&pchar){0} ) # For explicity only

    (?<segment> (?&pchar)* )
    (?<segment_nz> (?&pchar)+ )
    (?<segment_nz_nc> (?: (?&unreserved) | (?&pct_encoded) | (?&sub_delims) | \@ )+ )

    (?<pchar> (?&unreserved) | (?&pct_encoded) | (?&sub_delims) | \: | \@ )

    (?<query> (?: (?&pchar) | \/ | \? )* )

    (?<fragment> (?: (?&pchar) | \/ | \? )* )

    (?<pct_encoded> \% (?&HEXDIG) (?&HEXDIG) )

    (?<unreserved> (?&ALPHA) | (?&DIGIT) | \- | \. | \_ | \~ )
    (?<reserved> (?&gen_delims) | (?&sub_delims) )
    (?<gen_delims> \: | \/ | \? | \# | \[ | \] | \@ )
    (?<sub_delims> \! | \$ | \& | \' | \( | \)
    | \* | \+ | \, | \; | \= )

    )

    ^(?&uri)$

    /x';

    return preg_match($regex, $uri) === 1;
    }