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Top Forums UNIX for Beginners Questions & Answers Displaying every other line in an array. Post 303042493 by rbatte1 on Friday 27th of December 2019 05:04:08 AM
Old 12-27-2019
Rather than the effort and cost of a second array, could you create a flag that is either zero or one. You then have a simple test to add to your code:-
  • If the flag is zero, display the output and set the flag to one
  • If the flag is one, display nothing and set the flag to zero
Does that logic help?



Kind regards,
Robin
 

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MONGOCOLLECTION(3)							 1							MONGOCOLLECTION(3)

The MongoCollection class

INTRODUCTION
Represents a MongoDB collection. Collection names can use any character in the ASCII set. Some valid collection names are "", "...", "my collection", and "*&#@". User-defined collection names cannot contain the $ symbol. There are certain system collections which use a $ in their names (e.g., local.oplog.$main), but it is a reserved character. If you attempt to create and use a collection with a $ in the name, MongoDB will assert. CLASS SYNOPSIS
MongoCollection MongoCollection Constants o const int$MongoCollection::ASCENDING1 o const int$MongoCollection::DESCENDING-1 Fields o public MongoDB$db NULL o public integer$w o public integer$wtimeout Methods o public array MongoCollection::aggregate (array $pipeline, [array $options]) o public MongoCommandCursor MongoCollection::aggregateCursor (array $command, [array $options]) o public mixed MongoCollection::batchInsert (array $a, [array $options = array()]) o public MongoCollection::__construct (MongoDB $db, string $name) o public int MongoCollection::count ([array $query = array()], [array $options = array()]) o public array MongoCollection::createDBRef (mixed $document_or_id) o public bool MongoCollection::createIndex (array $keys, [array $options = array()]) o public array MongoCollection::deleteIndex (string|array $keys) o public array MongoCollection::deleteIndexes (void ) o public array MongoCollection::distinct (string $key, [array $query]) o public array MongoCollection::drop (void ) o public bool MongoCollection::ensureIndex (string|array $key|keys, [array $options = array()]) o public MongoCursor MongoCollection::find ([array $query = array()], [array $fields = array()]) o public array MongoCollection::findAndModify (array $query, [array $update], [array $fields], [array $options]) o public array MongoCollection::findOne ([array $query = array()], [array $fields = array()], [array $options = array()]) o public MongoCollection MongoCollection::__get (string $name) o public array MongoCollection::getDBRef (array $ref) o public array MongoCollection::getIndexInfo (void ) o public string MongoCollection::getName (void ) o public array MongoCollection::getReadPreference (void ) o public bool MongoCollection::getSlaveOkay (void ) o public array MongoCollection::getWriteConcern (void ) o public array MongoCollection::group (mixed $keys, array $initial, MongoCode $reduce, [array $options = array()]) o public bool|array MongoCollection::insert (array|object $document, [array $options = array()]) o public array[MongoCommandCursor] MongoCollection::parallelCollectionScan (int $num_cursors) o public bool|array MongoCollection::remove ([array $criteria = array()], [array $options = array()]) o public mixed MongoCollection::save (array|object $document, [array $options = array()]) o public bool MongoCollection::setReadPreference (string $read_preference, [array $tags]) o public bool MongoCollection::setSlaveOkay ([bool $ok = true]) o public bool MongoCollection::setWriteConcern (mixed $w, [int $wtimeout]) o static protected string MongoCollection::toIndexString (mixed $keys) o public string MongoCollection::__toString (void ) o public bool|array MongoCollection::update (array $criteria, array $new_object, [array $options = array()]) o public array MongoCollection::validate FALSE ([bool $scan_data]) PREDEFINED CONSTANTS
o MongoCollection::ASCENDING - 1 - Ascending direction for sorts and index creation. o MongoCollection::DESCENDING - -1 - Descending direction for sorts and index creation. FIELDS
o $db - The "parent" database for this collection. o $w - The number of servers to replicate a change to before returning success. Value is inherited from the parent database. The Mon- goDB class has a more detailed description of how w works. o $wtimeout - The number of milliseconds to wait for $this->w replications to take place. Value is inherited from the parent database. The MongoDB class has a more detailed description of how wtimeout works. SEE ALSO
MongoDB core docs on collections. PHP Documentation Group MONGOCOLLECTION(3)
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