Regex (PCRE)

As you know, Zend PHP has the PCRE extension for working with regular expressions, it includes the all preg_* functions. JPHP does not support these functions and PCRE for regexp. There is no implementation of this written on Java. Usage of the PCRE native library is not a good approach for the JVM Stack so JPHP has own regex library that is based on Java regex library.

---

Use the php\util\Regex class to replace the PCRE functions. It's an immutable class.

use php\util\Regex;

if (Regex::match('^[a-z]+$', $str, Regex::CASE_INSENSITIVE)) { }

// instead of
if (preg_match('/^[a-z]+$/i', $str) { }

preg_match_all

• You can replace preg_match_all to the Regex iterations.

$regex = Regex::of('([0-9]+)');

foreach ($regex->with('a 12 b 34 c 384') as $number) {
    var_dump($number);
}

preg_replace

• To replace via regex, you can use Regex::replace and Regex::replaceFirst methods.

$regex = Regex::of('([0-9]+)');

$string = $regex->with('a 12 b 34 c 384')->replace('NUM'); // result will be "a NUM b NUM c NUM"

preg_replace_callback

• Use Regex::replaceWithCallback and Regex::group.

$regex = Regex::of('([0-9]+)');

$string = $regex->with('a 12 b 32 c 384')->replaceWithCallback(function(Regex $self) {
     return $self->group() * 2;
});
// string will be "a 24 b 64 c 768"

preg_quote

• Use Regex::quote or Regex::quoteReplacement for replaceWithCallback.