<?php $replacements = array( '[PEDIDO]' => 123, '[NOME]' => 'Bruno Augusto', '[VALOR]' => 69.00, '[FRETE]' => 0, '[DESCONTO]' => 69.00, '[TOTAL]' => 'It\'s FREE!', ); //$msg = preg_replace( '/\[\w+\]/', ); var_dump( array_map( 'preg_quote', array_keys( $replacements ) ) );
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