<?php $amount = 5; $stuff = '<div><div class="rev_slider_2_2_wrapper"></div><i id="rev_slider_2_2_wrapper"></i></div>'; $stuff = preg_replace( '/rev_slider_(\d+)_(\d+)_wrapper/i', 'rev_slider_$1_{$amount}', $stuff ); print_r( $stuff );
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