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<?php $strings = '123/456/789'; // informatie uit strings.txt function hasEan($ean, $strings) { $strings = explode('/', $strings); return in_array($ean, $strings); } echo ' EAN 123 bestaat: '; if (hasEan('123', $strings)) { echo 'ja'; } else { echo 'nee'; } echo ' EAN 999 bestaat: '; if (hasEan('999', $strings)) { echo 'ja'; } else { echo 'nee'; }

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