The outer foreach loop has been used to read the row values of the array, and. This 1st example, assumes you want to display a grid of entries in 4 columns. So if you are using this syntax 'qty' => $row->$columns in PHP5 this will mean that you PHP will interpret your code and get the $i index from the $column array, while in PHP7 the interpreter will interpret your code and get the $i index from the $row->$columns array which will throw an error because :ġ - $columns is an array and you are trying to access illegal index type so to speak.Ģ - even if $columns is a valid index type ( string ) this index does not have the $ith element. These PHP operators enable you to add the first column class to the first entry in the 1st column on every row and also add the one-fourth class to all entries. A two-dimensional array of 4 rows and 4 columns has been declared in the script. Indirect access to variables, properties, and methods will now beĮvaluated strictly in left-to-right order, as opposed to the previous The code is set to be 4 columns on large screens, 2 on small screens and just the 1 on mobile. col-md- (medium devices - screen width equal to or greater than 768px). col-sm- (small devices - screen width equal to or greater than 576px). col- (extra small devices - screen width less than 576px). You are using an array as a variable variable, so you need to change this line : 'qty' => $row->$columnsĪlso there are a lot of changes in handling the indirect variables between PHP7 and PHP5, check it out. PHP MySQL loop with Bootstrap 4 columns Here is how to implement the Bootstrap grid system into a PHP MySQL foreach loop. The Bootstrap 5 grid system has six classes.
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