mysql num rows returns null

Using mysql_free_result($query) will free the memory related to $query. So ...

Using mysql_free_result($query) will free the memory related to $query. So any functions after this, related to $query won't return any value.

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Say you want to check if field/column “foo” from a given row of the table “...

Say you want to check if field/column “foo” from a given row of the table “bar” when > returned by a mySQL query is null. You just use the.

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echo(mysql_num_rows($query)); $result If you remove the WHERE tage = '...

echo(mysql_num_rows($query)); $result If you remove the WHERE tage = '$search', it cannot return the table like it should because your.

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($row) { session_start(); $_SESSION['login'] = "1"; // ...

($row) { session_start(); $_SESSION['login'] = "1"; // pleae not that 1 is is that I have used the MYSQLI library instead of the MYSQL library.

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The mysql_num_rows returns bool false on no rows dwn.220.v.ua you to re-wri...

The mysql_num_rows returns bool false on no rows dwn.220.v.ua you to re-write the code as $can = $r6['candidate_id'] ; $checkquery.

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It will return the minimum value of nextReview (from the rows that meet the...

It will return the minimum value of nextReview (from the rows that meet the In this case, there are no rows, so the values will be set to NULL.

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Hi, I'm having a strange issue with PHP, I have a working query that I...

Hi, I'm having a strange issue with PHP, I have a working query that I'm running, but when I try and grab the number of rows from it, nothing is.

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mysql_num_rows() could maybe return -1, but will only return false if the m...

mysql_num_rows() could maybe return -1, but will only return false if the mysql_query() and mysql_num_rows() do not return null. they either.

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posted in PHP Coding Help: Im using sql with php and mysql_fetch_assoc is r...

posted in PHP Coding Help: Im using sql with php and mysql_fetch_assoc is returning null even though mysql_num_rows returns 1. Ive echoed.

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Returns the number of rows in the result set. The behaviour of Gets the num...

Returns the number of rows in the result set. The behaviour of Gets the number of affected rows in a previous MySQL operation public $num_rows => NULL.

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How do you check if a mysql_query returns no records? ("SELECT Name FR...

How do you check if a mysql_query returns no records? ("SELECT Name FROM Info"); if ($result!= null) // is this the proper syntax? however, if 0 rows are returned, whenever i use mysql_num_rows i get an error frowning.

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The COUNT(*) function returns the number of rows in a result set returned b...

The COUNT(*) function returns the number of rows in a result set returned by a SELECT statement. The COUNT(*) function counts rows that contain no-NULL.

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Hi I have a problem with mysql_num_rows. I want to add unique md5() value t...

Hi I have a problem with mysql_num_rows. I want to add unique md5() value to a table. Therefore I need to check if the one I have created.

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The SQL COUNT function returns the number of rows in a table satisfying the...

The SQL COUNT function returns the number of rows in a table satisfying the criteria It sets the number of rows or non NULL column values. Bellow, you can see that MySQL, PostgreSQL, and Microsoft SQL Server follows.

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The number of values in the row is given by mysql_num_fields(result). If ro...

The number of values in the row is given by mysql_num_fields(result). If row holds the return value from a call to mysql_fetch_row(), pointers to the values are accessed as NULL if there are no more rows to retrieve or if an error occurred.

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