使用RegExp分隔字符串

Question

I have a string coming in that has productID's and their quantity separated by comma

ex. 2334(3),2335(15)

how could I turn this into an array easier than using explode substr explode? I'm terrible with RegExp, but I think you can lazy capture the variables?

like: $a[2334] = 3

Answer 1

You can use:

if (preg_match_all('/(\d+)\((\d+)\)/', '2334(3),2335(15)', $matches)) {
    $output = array_combine ( $matches[1], $matches[2] );
    print_r($output);   
}

OUTPUT:

Array
(
    [2334] => 3
    [2335] => 15
)

Answer 2

$sProducts = '2334(3),2335(15)';
$products = array();

$regex = '/(\d+)\((\d+\))/';

preg_match_all($regex, $sProducts, $matches);
$products = array_combine($matches[1], $matches[2]);

print_r($products);

Output:

Array ( [2334] => 3) [2335] => 15) )

Fiddle: http://phpfiddle.org/lite/code/k9g-057

Answer 3

Something like:

$input = '2334(3),2335(15)';

//split your data into more manageable chunks    
$raw_arr = explode(',', $input);

$processed_arr = array();
foreach( $raw_arr as $item ) {
  $matches = array();
  // simple regexes are less likely to go off the rails
  preg_match('/(\d+)\((\d+)\)/', $item, $matches);
  if( !empty($matches) ) {
    $processed_arr[$matches[1]] = $matches[2];
  } else {
    // don't ignore the possibility of error
    echo "could not process $item\n";
  }
}