while loop in php mysql
Posted by in Jan, 2021
Hi guys, I have two tables. Loops are used to execute the same block of code again and again, as long as a certain condition is met. We equally welcome both specific questions as well as open-ended discussions. An important thing to note is that using mysql_fetch_assoc() is not significantly slower than using mysql_fetch_row(), while it provides a significant added value. I am using php to display the data of the two columns id & product_name in each row. I am using a while loop to attempt to extract data from two columns in all of the rows of the table. I am very new to mysql and php but trying to learn. Note: Field names returned by this function are case-sensitive. I need to be able to select multiple tools (using checkboxes), and then submit that form to a shopping cart. foreach and while you will need more often than for. So if you don't want to use a while loop, but you still want to print the first and, for example, the fifth row, you can move the pointer using mysql_data_seek: mysql_data_seek() moves the internal row pointer of the MySQL result associated with the specified result identifier to point to the specified row number. I have a question regarding using a while loop to display the contents of a table. add_comment Reply to this Topic Note: This function sets NULL fields to the PHP null value. The article contains information about the while loop in MySQL and its usage. September 5, 2014, 2:01am #1. The while loop, which is one of the loops used in programming languages, is used for repetitive operations according to a condition. PHP & MySql WHILE loop 3 ; Not what you need? Dave Scheuerman. adamschroeder. May 02, 2008 05:57PM Re: Using while loop to display contents of a … WHILE MyCondition DO--Commands. 2. Read "Differences between a while loop and a for loop in PHP… Topics Feed. The basic idea behind a loop is to automate the repetitive tasks within a program to save the time and effort. It is my understanding that a mysql_fetch_array will only return 1 row unless it is used in conjunction with a while loop, which then should return all rows. Start New Topic. Functionally, the foreach and while implementations are equivalent. This means that the do...while loop will execute its statements at least … Im trying to build an online tool checkout application, so Im working with script 10.5 to pull (tool names) from a database to populate a table. combining SQL and HTML in one function is a sign of VERY BAD design. Using while loop to display contents of a table. PHP supports four different types of loops. Different Types of Loops in PHP. 3. Note: In a do...while loop the condition is tested AFTER executing the statements within the loop. But the problem is that I'm running a mysql_query within a while loop, which I was told I should avoid. While Loop in MySQL. The idea of creating such a function is wrong. Okay, here is complete code:
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