Bug #62367 [Com]: OCI8 statement not fully freed if bind data contains references

From: Date: Tue, 16 Jun 2020 09:53:49 +0000
Subject: Bug #62367 [Com]: OCI8 statement not fully freed if bind data contains references
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=62367&edit=1 ID: 62367 Comment by: arajgure at sevenmentor dot com Reported by: galaxy dot mipt at gmail dot com Summary: OCI8 statement not fully freed if bind data contains references Status: Open Type: Bug Package: OCI8 related Operating System: Linux PHP Version: 5.4.4 Block user comment: N Private report: N New Comment: Thank you for this wonderful blog . Its really an amazing blog to read. It has lots of information regarding IoT. Students & working professionals can go through this blog as it would really help them. https://www.sevenmentor.com/ccna-course-in-pune-area.php Previous Comments: ------------------------------------------------------------------------ [2012-06-19 22:56:30] galaxy dot mipt at gmail dot com Oh, I swapped actual and expected results by mistake ------------------------------------------------------------------------ [2012-06-19 22:53:45] galaxy dot mipt at gmail dot com Description: ------------ Probably I miss some point here but anyway - in the test script below bind data is passed to the query() function as an array from pre-created collection. On each call memory consumption grows by pretty huge value (~65kB) even though oci_free_statement() is called. The important conditions to reproduce: 1. Bind array contains references. Without those I get 639500 639520 2. PL/SQL script actually writes to one of bound variables. With the second (currently commented out) version I get 639516 657136 Test script: --------------- function query($data) { global $conn; $stid = oci_parse($conn, 'begin select :a + :b into :b from dual; end;'); //$stid = oci_parse($conn, 'declare j number; begin select :a + :b into j from dual; end;'); oci_bind_by_name($stid, ':a', $data['a'], 100); oci_bind_by_name($stid, ':b', $data['b'], 100); oci_execute($stid); oci_free_statement($stid); } $conn = oci_connect('user', 'pass', 'dbref'); if (!$conn) { $e = oci_error(); die($e['message']); } $data = array(); for($i = 0; $i < 1000; $i++) { $data[] = array( "a" => 1, "b" => 2 ); } print memory_get_usage() . "\n"; for($i = 0; $i < 100; $i++) { query( array( "a" => &$data[$i]["a"], "b" => &$data[$i]["b"] ) ); } print memory_get_usage() . "\n"; oci_close($conn); Expected result: ---------------- 639500 7202720 Actual result: -------------- 639500 639520 or nor far from this ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62367&edit=1

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