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<?php
//question 1 calculate the sum of even numbers
// $z=[6,7,9,4,5,8];
// $total=0;
// foreach($z as $zaki){
// if($zaki%2==0){
// $total+=$zaki;
// }
// }
// echo "the sum is $total";
//question 2 sum up the two arrays
// $z=[6,7,9,4,5,8];
// $h=[6,7,9,4,5,8];
// $zaki=[];
// for($i=0;$i<=5;$i++){
// $zaki[$i]=$z[$i]+$h[$i];
// }
// print_r($zaki);
// function to calculate the sum of two absolute values
// function sum_of_abs($x){
// if($x<0)
// return $x*-1;
// else
// return $x;
// }
// $sum=sum_of_abs(-5)+sum_of_abs(-6);
// echo $sum;
// question 4 print this loop
// for($r=1;$r<=5;$r++){
// for($c=1;$c<=$r;$c++){
// echo "X";
// }
// echo "<BR>";
// }
//question 5 print the same loop but in row 2 must be 22 and row four is 4444
for($r=1;$r<=5;$r++){
for($c=1;$c<=$r;$c++){
if($r%2==0)
echo "$r";
else
echo "X";
}
echo "<BR>";
}
// so2al array
// so2al pattern
// so2al function
// dool written code
// wel ba2y hayb2a 3ala kolo bel datbase connection
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