<?php $optimization_prompt = '[not a key] The product title is [title] and the price is [price] and this product link is [link]'; $get_product = ['title' => 'theTitle', 'price' => 45, 'link' => 'https://thelink.com']; $result = preg_replace_callback( '~\[([^][]+)]~', fn($m) => $get_product[$m[1]] ?? $m[0], $optimization_prompt ); echo $result;
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