<?php $code = "[gallery-1] <p>Test...test...test...</p> [gallery-2]"; preg_match_all("/\[gallery-([1-9])\]/", $code, $matches); $galleries = []; foreach ($matches[1] as $id) { $galleries[$id] = // Somehow load a gallery basing on id; } foreach ($galleries as $id => $code) { $code = str_ireplace("[gallery-" . $id . "]", $code); } echo $code;
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