sigmahokies Posted May 18, 2015 Share Posted May 18, 2015 Hi everyone, I am still learning to do PHP, please be patient with me. Thank you so much! I am trying to understand how "while loop" work in PHP, or do you recommend me use foreach, for, or do for array list from MySQL database? my Code in PHP: <!doctype html> <html> <head> <title>Test foreach columns</title> <link href="default.css" rel="stylesheet" type="text/css"> </head> <body> <?php $Garydb = mysqli_connect("XXXXXX","XXXXXX","XXXXXX") or die("Could not connect MySQL Database"); mysqli_select_db($Garydb, "XXXXXX") or die("Could not find Database"); $sql = "SELECT * FROM XXXXXX"; $display = mysqli_query($Garydb, $sql); while($key = mysqli_fetch_array($display)) { echo "<table><tr><td>".$key."</td><td>".$key."</td></tr></table>"; } ?> </body> </html> seem display on website showing "Array Array" 12 row and 2 columns, what I did do wrong? Link to comment https://forums.phpfreaks.com/topic/296380-php-while-loop/ Share on other sites More sharing options...
Barand Posted May 18, 2015 Share Posted May 18, 2015 while() loops will loop until the condition is no longer true. In the case of mysqli results, mysqli_fetch_* functions all return false when they reach the end of the result set. foreach() is for loop through arrays. $key in your code is an array of the columns in the current row. You need $key[0], $key[1] etc to echo the individual fields. Or you can use field names as the key (but I don't know what they are as you use select * ). When you come back to the code in a few months you won't know what it's selecting either. Specify just the columns you want and not * . Link to comment https://forums.phpfreaks.com/topic/296380-php-while-loop/#findComment-1512165 Share on other sites More sharing options...
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