php

please read instructions carefully im NOT looking for this answer below:

function add($a, $b) { return $a+$b; }

function subtract($a, $b) { return $a-$b; }

function mult($a, $b) { return $a*$b; }

function exponential($a, $b) { return pow($a, $b); }

function Soccer return all 5 function as X S1 whitesi Sesser als Sesser > return > function etc.) Sie Se wile (1) Sell Sie success > retem se echo at.513 eche Mitali eche eche structie Subtract- eche este, eche . eche. echo TV SERIAL IN PHP language how can i make my function named "add add two numbers together and make it able to handle negative numbers? how can i make subtract function name "subtract ike my 'add" function(while loop and succe) must be able to handle negative numbers multiplication function named "mult nust handle negative numbers use the same algorithm from add" (while loop and Suc) make a exponential function named 'exponential" only handle positive exponents, but handle negative ases. nust use the same algorithm from above -- must be able to properly run the code at the sottom of the picture function successor($num) { return $numre1; function add($n, $k) { $1=0; while($i function Soccer return all 5 function as X S1 whitesi Sesser als Sesser > return > function etc.) Sie Se wile (1) Sell Sie success > retem se echo at.513 eche Mitali eche eche structie Subtract- eche este, eche . eche. echo TV SERIAL IN PHP language how can i make my function named "add add two numbers together and make it able to handle negative numbers? how can i make subtract function name "subtract ike my 'add" function(while loop and succe) must be able to handle negative numbers multiplication function named "mult nust handle negative numbers use the same algorithm from add" (while loop and Suc) make a exponential function named 'exponential" only handle positive exponents, but handle negative ases. nust use the same algorithm from above -- must be able to properly run the code at the sottom of the picture function successor($num) { return $numre1; function add($n, $k) { $1=0; while($i