PHP and ORACLE connections

PHP and ORACLE connection problem environment: win7 + WampServer2.2 (PHP 5.3) enabled oci, but the following error is reported during the execution of the statement: reference (& nbsp ;! & Nbsp;) & nbsp; Warning: & nbsp; oci_fetch_array () & nbsp; connection between PHP and ORACLE
Environment: win7 + WampServer2.2 (5.3 for PHP)

Oci enabled

However, during statement execution, the following message is reported:

Reference

(! ) Warning: oci_fetch_array () [function. oci-fetch-array]: ORA-24374: defined in F: \ wamp \ www \ piaobo \ oracle not completed before reading or executing and reading. php on line 36

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------ Solution --------------------
The previous functions are all for you. you can find the code for the corresponding function to see what the problem is.