I’m doing my first own database class at the moment and currently I’m doing the prepare function. What this function does is to take in an SQL-query and then an array containing the variables for the …
Tag: prepared-statement
bind_param Number of variables doesn’t match number of parameters in prepared statement
Here is a snippet from my code: When I echo out the values for $year and $make, I am seeing values, but when I run this script, I get a null value, and the following warning appears in my log file: PHP Warning: mysqli_stmt::bind_param(): Number of variables doesn’t match number of parameters in prepared statement In this case, year is
How to get the SQL_CALC_FOUND_ROWS value using prepared statements?
I’m currently scratching my head at how to implement SQL_CALC_FOUND_ROWS with prepared statements. I’m writing a pagination class and obviously i want to add LIMIT to the query but also find what the …
WordPress prepared statement with IN() condition
I have three values in a string like this: When I feed it into a prepared statement like this: echo $query; shows: It is not writing the string as three separate values — it is just one string with the double quotes escaped. How can I properly implement a prepared statement in WordPress with multiple values? Answer Try this code:
PDO were rows affected during execute statement
I have found many ways to use the exec statement for PDO, but I’m not sure it helps me. My understanding is that I have to use the execute() function for prepared statements. I am updating a row with data from user input, so I would like to use a prepared statement instead of the query() call. My code is
Why MySQLi prepared statements?
What are the advantages of using prepared statements with MySQLi? If the only purpose is to secure the query, isn’t it better to clean the query using something like mysqli_real_escape_string instead of writing so many lines of code for each query (like prepare, bind_param, execute, close, etc.)? Answer Preparing statements is not just for code security. It helps the SQL
How can I determine mySQL prepared statement result column names in PHP?
That is, with a prepared statement like: I believe I can use $mysqli->field_count to get the number of columns being returned (haven’t tried). But is there a way to link each column name to the values returned in bind_results? I could always try to parse the column names out from the command itself, but that’s not a road I want
MySQL Prepared statements with a variable size variable list
How would you write a prepared MySQL statement in PHP that takes a differing number of arguments each time? An example such query is: The IN clause will have a different number of ids each time it is run. I have two possible solutions in my mind but want to see if there is a better way. Possible Solution 1