PHP code example of liquidrazor / liquid-regex

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

liquidrazor / liquid-regex example snippets

use LiquidRazor\Regex\Regex;

$re = Regex::compiled('/(?P<word>[a-z]+)/i');

use LiquidRazor\Regex\Result\ResultTypes;

// Types
ResultTypes::INDEXED;      // numeric keys only (0, 1, 2, ...)
ResultTypes::ASSOCIATIVE;  // named keys only ('foo', 'bar', ...)
ResultTypes::BOTH;         // default: 

$flags = ResultTypes::ASSOCIATIVE | ResultTypes::STRICT;

use LiquidRazor\Regex\Lib\Flags;

Flags::OffsetCapture;   // 

use LiquidRazor\Regex\Regex;
use LiquidRazor\Regex\Result\ResultTypes;

$re = Regex::compiled('/(?P<word>[a-z]+)/i');

$result = $re->match(
    haystack: "Hello, World!",
    resultType: ResultTypes::ASSOCIATIVE | ResultTypes::STRICT // named keys only
);

if ($result->didMatch) {
    // ArrayAccess
    $first = $result[0]; // or $result['word'] in ASSOCIATIVE mode

    // Countable
    $count = count($result);

    // Iteration (rewindable)
    foreach ($result as $k => $v) {
        // ...
    }

    // JSON
    $json = json_encode($result, JSON_PRETTY_PRINT);
}

use LiquidRazor\Regex\Regex;
use LiquidRazor\Regex\Result\Replace\Result;

$re = Regex::compiled('/(\d+)/');
$replace = $re->replace('abc 123 xyz 45', '#');

$replace->pattern;   // the pattern used
$replace->count;     // number of replacements performed
(string)$replace;    // casts to the replaced string (or JSON if array)

// Read-only access (mutations throw)
$value = $result['name'] ?? $result[0];

use LiquidRazor\Regex\Pcre;

Pcre::versionString();   // "PCRE x.y (major.minor)"
Pcre::isJitSupported();  // bool
Pcre::isValid('/^[a-z]+$/i'); // quick sanity check for "/.../flags"-style patterns

use LiquidRazor\Regex\Exception\PcreException;

try {
    $re = Regex::compiled('/(?P<name>[a-z]+)/i');
    $res = $re->match('...');
} catch (PcreException $e) {
    // inspect $e->getMessage(), $e->getCode()
}

use LiquidRazor\Regex\Regex;
use LiquidRazor\Regex\Result\ResultTypes;

$re = Regex::compiled('/(?P<num>\d+)-(?P<word>[a-z]+)/i');
$res = $re->match('42-Answer', ResultTypes::ASSOCIATIVE | ResultTypes::STRICT);

echo json_encode($res, JSON_PRETTY_PRINT);
/*
{
  "num": "42",
  "word": "Answer"
}
*/

use LiquidRazor\Regex\Regex;
use LiquidRazor\Regex\Lib\Flags;

$re = Regex::compiled('/(a)?(b)/');
$res = $re->match('xb', Flags::OffsetCapture, Flags::UnmatchedAsNull);

// Offsets 

$this->assertJsonStringEqualsJsonString(
    '{"word":"Hello"}',
    json_encode($result, JSON_THROW_ON_ERROR)
);