Re: php: assignment operator

On Tue, Aug 06, 2002 at 07:54:47PM -0500, Anthony Ritter wrote: > > for($i=0; $i<strlen($counter); $i++) > { > $image_src=$image_dir. "/" .substr($counter, $i, 1) . ".jpg"; > $image_tag_src.="<IMG SRC=\"$image_src\" BORDER=\"0\">"; > // assignment > operator .= > } See http://www.php.net/manual/en/language.operators.assignment.php. .= appends the text to the right of the operator to the end of the variable on the left side of the operator. Therefore, $image_tag_src will be one long string containing several "<img src..." in it, one for each time the loop executes. Be careful. Before using this operator, make sure you manually set the variable to something, such as: $image_tag_src = ''; before starting in order to avoid people hacking your code by putting nasty text in the $image_tag_src variable. > If I was to assign the html string to the variable $image_tag_src without > the .= and insert a =, the script continues to run fine since $image_src > still contiunes to hold the value of > $image_dir. "/" .substr($counter, $i, 1) . ".jpg"; That's the case if strlen($counter) is 1. If it were more, you'd see multiple image tags in there. --Dan -- PHP classes that make web design easier SQL Solution | Layout Solution | Form Solution sqlsolution.info | layoutsolution.info | formsolution.info T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y 4015 7 Av #4AJ, Brooklyn NY v: 718-854-0335 f: 718-854-0409