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mongoconnectionexception(3) [php man page]

MONGOCONNECTIONEXCEPTION(3)						 1					       MONGOCONNECTIONEXCEPTION(3)

The MongoConnectionException class

INTRODUCTION
Thrown when the driver fails to connect to the database. There are a number of possible error messages to help you diagnose the connection problem. These are: o No candidate servers found Thrown when the driver cannot establish a connection to MongoDB (fulfilling the ReadPreferences, if specified). o No server name given. This error occurs if you pass in "" as the server name, probably because of an typo with string interpola- tion, e.g., "$servr" instead of "$server". o failed to get host [hostname] or port [portnum] from [server]. This indicated that the server string was malformed. "[hostname]" and "[portnum]" will be as much as the driver could dicipher of it. o Operation in progress Connecting to the database timed out. o Transport endpoint is not connected Generally means that the connection string isn't correct, the driver couldn't even find the database server. o couldn't determine master No server in a replica set connection was identified as the primary. o couldn't get host info for [server] This indicated that DNS could not resolve the server address you gave. This could easily be caused by a typo, for example, "server" instead of "$server". o Invalid Argument This can be caused by attempting to connect to a machine that is up but that the database isn't actually running on. Make sure that you've started the database server before connecting. o Permission denied This means that the socket could not be opened due to permissions issues. On Red Hat variants, this can be caused by a default setting that does not allow Apache to create network connections. You can override this setting by running: $ /usr/sbin/setsebool -P httpd_can_network_connect 1 If the error message is not listed above, it is probably an error from the C socket, and you can search the web for its usual cause. CLASS SYNOPSIS
MongoConnectionException MongoConnectionExceptionextends MongoException PHP Documentation Group MONGOCONNECTIONEXCEPTION(3)

Check Out this Related Man Page

LDAP_CONNECT(3) 							 1							   LDAP_CONNECT(3)

ldap_connect - Connect to an LDAP server

SYNOPSIS
resource ldap_connect NULL ([string $hostname], [int $port = 389]) DESCRIPTION
Establishes a connection to a LDAP server on a specified $hostname and $port. PARAMETERS
o $hostname - If you are using OpenLDAP 2.x.x you can specify a URL instead of the hostname. To use LDAP with SSL, compile OpenLDAP 2.x.x with SSL support, configure PHP with SSL, and set this parameter as ldaps://hostname/. o $port - The port to connect to. Not used when using URLs. RETURN VALUES
Returns a positive LDAP link identifier on success, or FALSE on error. When OpenLDAP 2.x.x is used, ldap_connect(3) will always return a resource as it does not actually connect but just initializes the connecting parameters. The actual connect happens with the next calls to ldap_* funcs, usually with ldap_bind(3). If no arguments are specified then the link identifier of the already opened link will be returned. EXAMPLES
Example #1 Example of connecting to LDAP server. <?php // LDAP variables $ldaphost = "ldap.example.com"; // your ldap servers $ldapport = 389; // your ldap server's port number // Connecting to LDAP $ldapconn = ldap_connect($ldaphost, $ldapport) or die("Could not connect to $ldaphost"); ?> Example #2 Example of connecting securely to LDAP server. <?php // make sure your host is the correct one // that you issued your secure certificate to $ldaphost = "ldaps://ldap.example.com/"; // Connecting to LDAP $ldapconn = ldap_connect($ldaphost) or die("Could not connect to {$ldaphost}"); ?> SEE ALSO
ldap_bind(3). PHP Documentation Group LDAP_CONNECT(3)
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