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Bug #51400 mysql_fetch_array() returns NULL
Submitted: 2010-03-26 14:56 UTC Modified: 2010-03-26 15:08 UTC
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: aa at marcandi dot com Assigned:
Status: Not a bug Package: MySQL related
PHP Version: 5.3.2 OS: CentOS 5.2 (64-bit)
Private report: No CVE-ID: None
 [2010-03-26 14:56 UTC] aa at marcandi dot com
Calling mysql_fetch_array() with an empty/errorneous result set returns NULL, not 
FALSE. This is a behavioral change from 5.2.10.

Documentation says: "Returns an array of strings that corresponds to the fetched 
row, or FALSE if there are no more rows."

Test script:
$r = @mysql_query( 'This is a broken query' );
$f = @mysql_fetch_array( $r );
print var_dump( $f );

Expected result:

Actual result:


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 [2010-03-26 15:08 UTC]
-Status: Open +Status: Bogus
 [2010-03-26 15:08 UTC]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at and the instructions on how to report
a bug at

The documentation states

  If the parameters given to a function are not what it
  expects, such as passing an array where a string is
  expected, the return value of the function is undefined.
  In this case it will likely return NULL but this is just
  a convention, and cannot be relied upon.

You are passing "false" to a function expecting a "mysql result resource"
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