MongoDB php,mongodb_php Tutorial

MongoDB Php,mongodb

Install the extension first before you can use MongoDB

First, connect the database

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     Var_dump ($dbcatch$e) {    echo$e getMessage ();}

The code can connect to the MyDB database and is created automatically if the database does not exist.

Second, create the collection

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     $mycol $db->createcollection (' MyCol ');     Var_dump ($mycolcatch$e) {    echo$e getMessage ();}

The code can create a collection of MyCol.

Third, insert the document

Use Insert () in MongoDB to insert the document.

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     $mycol $db, MyCol;     $document Array (' name ' = ' test1 ', ' sex ' = ' formale ', ' age ' = ');     $res $mycol->insert ($document);     Var_dump ($rescatch$e) {    echo$e getMessage ();}

Output:

Array (size=4)   float 1  ' n ' = = int 0  null  null

Iv. Finding documents

MongoDB uses find () to find documents

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     $mycol $db, MyCol;     $mongoCursor $mycol, find ();     foreach ($mongoCursoras$document) {        var_dump($document );     Catch $e {    echo$e-GetMessage ();}

Results:

Array (size=4)  ' _id ' = =     object(MongoId) [7      ]publicstring ' 56c28a793b22cf5415000029 ' (length=24)  string ' test1 ' (length=5)    String ' Formale ' (length=7)  ' age ' = int 20

V. Update the DOCUMENTATION

Update the document using update ()

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     $mycol $db, MyCol;     $mycol->update (arrayarray(' $set ' = =array(' age ')]) ;     $mongoCursor $mycol, find ();     foreach ($mongoCursoras$document) {        var_dump($document );     Catch $e {    echo$e-GetMessage ();}

Results

Array (size=4)  ' _id ' = =     object(MongoId) [7      ]publicstring ' 56c28a793b22cf5415000029 ' (length=24)  string ' test1 ' (length=5)    String ' Formale ' (length=7)  ' age ' = int 21

Vi. Deletion of documents

Try {    $mongonew  mongoclient ();     $db $mongo, mydb;     $mycol $db, MyCol;     $mycol->remove (array(' name ' = ' test1 '));     $mongoCursor $mycol, find ();     foreach ($mongoCursoras$document) {        var_dump($document );     Catch $e {    echo$e-GetMessage ();}

Remove method

 Public bool| Array Array $criteria Array Array $options Array () ]] )

Options to delete:

"W": the level of exception thrown, default is 1;

"Justone": Delete at most one matching record;

"fsync": Boolean, defaults to FALSE . Forces the insert to is synced to disk before returning success. If TRUE , an acknowledged inserts is implied and would override setting W to 0.

"timeout": Integer, defaults to mongocursor:: $timeout. If "Safe" is set, this sets how long (in milliseconds) for the client to wait for a database response. If the database does not respond within the timeout period, Amongocursortimeoutexception would be thrown.

......

Other methods can be found in the PHP manual: http://php.net/manual/zh/book.mongo.php

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