CODEWITHSUNDEEP
phpregex
Dimitris Romeo Havlidis
Dimitris Romeo Havlidis

Reputation: 241

PHP Multiline regexp

Hello everyone I am trying to create a regexp for PHP that will allow me to get the quote and the author. I have made it work if everything is one line but the moment it is put in multiple lines it stops working. What am I doing wrong? 

(\[quote\])(.*)(\|)(.*)(\[\/quote\])

[quote]Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.|-popular children's rhyme[/quote]

[quote]Silence you sleep.|-popular children's rhyme[/quote]

Upvotes: 1

Views: 1045

Answers (2)

trincot
trincot

Reputation: 350079

Use the s modifier (append if after the regex delimiter). Also, make your .* non-greedy by adding a ?:

preg_match_all("~\[quote\](.*?)\|(.*?)\[/quote\]~s", $s, $results,  PREG_SET_ORDER);

Output is in $results:

[
    [
        "[quote]Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.|-popular children's rhyme[/quote]",
        "Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.",
        "-popular children's rhyme"
    ], [
        "[quote]Silence you sleep.|-popular children's rhyme[/quote]",
        "Silence you sleep.",
        "-popular children's rhyme"
    ]
]

Upvotes: 5

ctwheels
ctwheels

Reputation: 22817

Code

See regex in use here

\[quote\](.*?)\|-(.*?)\[\/quote\]

Note: The regex above uses the s modifier. Alternatively, you can replace . with [\s\S] and disable the s modifier

Usage

$re = '/\[quote\](.*?)\|-(.*?)\[\/quote\]/s';
$str = '[quote]Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.|-popular children\'s rhyme[/quote]

[quote]Silence you sleep.|-popular children\'s rhyme[/quote]';

preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);

// Print the entire match result
var_dump($matches);

Results

Input

[quote]Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.|-popular children's rhyme[/quote]

[quote]Silence you sleep.|-popular children's rhyme[/quote]

Output

The output below is organized by group (separated by newline)

Silence in the boatyard, Silence in the street, The Locks and Quays of Haganport Will rob you while you sleep.
popular children's rhyme

Silence you sleep.
popular children's rhyme

Explanation

  • \[quote\] Match this literally (backslashes escaping the following character)
  • (.*?) Capture any character any number of times, but as few as possible into capture group 1
  • \|- Match this literally (backslashes escaping the following character)
  • (.*?) Capture any character any number of times, but as few as possible into capture group 2
  • \[\/quote\] Match this literally (backslashes escaping the following character)

Upvotes: 3

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