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<?php $field = "socios_alta"; $fields = array( 'socios_alta', 'socios_baja', 'socios_baja_web', 'no_socios_alta', 'no_socios_baja', 'socios_hcm_alta', 'boletin_alta', 'boletin_baja' ); if(array_key_exists($field, $fields)) echo "existe";
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