/PHP/"A non well formed numeric value encountered

"A non well formed numeric value encountered

A non well formed numeric value encountered

// when working with datetime php got below error, 
A non well formed numeric value encountered

// please add strtotime

// your code =>
date('H:i', '10:00');  // INCORRECT

//
date('H:i', strtotime('10:00'))); // CORRECT (add strtotime)

"A non well formed numeric value encountered

I got error in this line A non well formed numeric value encountered in
please reslove it.

              $total= $value['productQuantaity'] *  $value['productPrice'];

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