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<?php $nomChamp = 'p.id_projet'; $positionPrefixe = strpos($nomChamp, '.'); if($positionPrefixe !== false) { $prefixe = substr($nomChamp, 0, $positionPrefixe - 1); $nomChamp = str_replace($prefixe, '', $nomChamp); } print_r($prefixe); echo "*****************\n"; print_r($nomChamp); ?>

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