PHP remove regex from string, but keep match & rest

Question

is there a way in php to have a combined preg_match_all and preg_replace?

Having a string $string like:

Lorem Ipsum `code block` lorem `code`

I want to remove the code blocks from the string and keep $string (without the code blocks) but also keep an array of matches, like I would get with preg_mach_all.

[
  0 => `code block`,
  1 => `code`
]

Is this possible in one command in php?

anubhava · Accepted Answer · 2015-12-06 08:40:11Z

1

You can use preg_replace_callback:

$s = 'Lorem Ipsum `code block` lorem `code`';

$matches = array(); // array to keep removed matches
$repl = preg_replace_callback('/(`[^`]*`)\h*/', function($m) use(&$matches) {
            $matches[]=$m[1]; return ''; }, $s);

echo $repl . "\n";
print_r($matches);

Output:

Lorem Ipsum lorem
Array
(
    [0] => `code block`
    [1] => `code`
)

answered Dec 6, 2015 at 8:40

anubhava

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