mysqli_result::free

mysqli_result::close

mysqli_result::free_result

mysqli_free_result

(PHP 5, PHP 7)

mysqli_result::free -- mysqli_result::close -- mysqli_result::free_result -- mysqli_free_resultFrees the memory associated with a result

Opis

Styl obiektowy

mysqli_result::free ( void ) : void
mysqli_result::close ( void ) : void
mysqli_result::free_result ( void ) : void

Styl proceduralny

mysqli_free_result ( mysqli_result $result ) : void

Frees the memory associated with the result.

Informacja:

You should always free your result with mysqli_free_result(), when your result object is not needed anymore.

Parametry

wynik

Tylko styl proceduralny: Identyfikator zbioru wyników zwróconych przez mysqli_query(), mysqli_store_result() lub mysqli_use_result().

Zwracane wartości

Nie jest zwracana żadna wartość.

Zobacz też:

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User Contributed Notes 3 notes

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5
Vector at ionisis dot com
10 years ago
If you are getting this error:
Internal SQL Bug: 2014, Commands out of sync; you can't run this command now

Then you never called mysqli_result::free(), mysqli_result::free_result(), mysqli_result::close(), or mysqli_free_result() in your script, and must call it before executing another stored procedure.
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1
jack_action100 at hotmail dot example dot com
1 year ago
If you are STILL getting this error, even after freeing your results:
Internal SQL Bug: 2014, Commands out of sync; you can't run this command now

You may have a stored procedure in your query.   A procedure can return more than one result set, and it will always return one extra empty result set that carries some meta information on the procedure call itself, especially error information. ( source:  https://bugs.mysql.com/bug.php?id=71044 )

While calling single procedures, with one SELECT in them, using mysqli->query("CALL `stored_procedure`();"), I had to do the following to make it work between two calls:

<?php
$result
->free();
$mysqli->next_result();
?>

It has no negative impact if you are not calling a stored procedure.
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-13
Anonymous
10 years ago
Freeing the memory associated with a result means that the references returned by mysqli_fetch_object (or equivalent) are cleared. Thus if you should pass an object pointing to a database row _by reference_, every call of mysqli_free_result will discard the referenced data.
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