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php oracle connection error

Posted on 2007-11-15
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Last Modified: 2013-12-19
hi,

i installed oracle 10g express on my window xp machine.

i am trying to connect the database with php (5.2.3)

here is my connection string:
$conn = oci_connect('testdb', 'testdb', 'TestDB');

but i am get the following errors displayed on my page:

Warning: oci_connect() [function.oci-connect]: ORA-12154: TNS:could not resolve the connect identifier specified in E:\WEBAPPS\WEBDEV\VAN\dbconnect\oracledbc.php on line 3

Warning: oci_parse() expects parameter 1 to be resource, boolean given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 7

Warning: oci_execute() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 8

Warning: oci_fetch_all() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 10

Oracle PHP Test

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Warning: oci_free_statement() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 29

Warning: oci_close() expects parameter 1 to be resource, boolean given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 30
PHP Warning: oci_connect() [function.oci-connect]: ORA-12154: TNS:could not resolve the connect identifier specified in E:\WEBAPPS\WEBDEV\VAN\dbconnect\oracledbc.php on line 3 PHP Warning: oci_parse() expects parameter 1 to be resource, boolean given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 7 PHP Warning: oci_execute() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 8 PHP Warning: oci_fetch_all() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 10 PHP Warning: oci_free_statement() expects parameter 1 to be resource, null given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 29 PHP Warning: oci_close() expects parameter 1 to be resource, boolean given in E:\WEBAPPS\WEBDEV\VAN\oraclesample.php on line 30

what could be here the problem

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Question by:eaweb
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3 Comments
 
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Accepted Solution

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Guy Hengel [angelIII / a3] earned 500 total points
ID: 20288645
> ORA-12154: TNS:could not resolve the connect identifier
makes me assume that testdb is not correct tns name... maybe testdb.world is?
for that to correct, we need to look at the tnsnames.ora and sqlnet.ora file in the relevant oracle home directory \network\admin
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Author Comment

by:eaweb
ID: 20289320
yes angleIII, problem solved

<?php
if ($c = oci_connect ("hr", "hr", "xe")) {
  echo "Successfully connected to Oracle.\n";
  oci_close($c);
} else {  
  echo "Oracle Connect Error ";
}
?>

the tns name was "xe"

do you know some site where i can get some query display sample code for php oracle just like the site asp101?
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LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 20290016
"everything" for php should be findable on php.net (via google) or the main index of the language reference.
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