Search results for: "return false"

What is the typical return value of mysql_query in PHP and when does it return false?

The typical return value of mysql_query in PHP is a resource for successful SELECT, SHOW, DESCRIBE, or EXPLAIN queries, and true for other successful...

What are the potential pitfalls of inconsistent return values (null vs false) in PHP functions?

Inconsistent return values (null vs false) in PHP functions can lead to confusion for developers who are expecting a consistent response. To solve thi...

How can the "existTable" function be modified to return true/false based on the query result?

The "existTable" function can be modified to return true if the query result returns a valid table name and false if the query result is empty. This c...

What are common reasons for preg_match to return FALSE in PHP?

Common reasons for preg_match to return FALSE in PHP include incorrect regular expression syntax, a mismatch between the regular expression and the in...

What are common reasons for mysqli_query() to return false in PHP?

Common reasons for mysqli_query() to return false in PHP include syntax errors in the SQL query, connection errors to the database, and permission iss...