ค้น หาคำว่า WD ถ้าเจอ ให้ เอา ค่าที่มี อยู่ แล้วบวกเพิ่ม เข้าไป str_replace()

<?php
$base = array("orange", "banana", "apple", "raspberry");
$replacements = array(0 => "pineapple", 4 => "cherry");
$replacements2 = array(0 => "grape");

$basket = array_replace($base, $replacements, $replacements2);
print_r($basket);
?>

<?php

$A= "4-ASD(WD)";
$A = str_replace("-","#",str_replace(")","#",str_replace("(","#",$A)));
$B= explode("#",$A);
print_r($B);

?>

<?php 
// เทียบ string แยก ตัวอักษร---------------------------------
$array1 = array("a" => "$B[0]","$B[1]","$B[2]","$B[3]","$B[4]","$B[5]","$B[6]","$B[7]","$B[8]","$B[9]","$B[10]","$B[11]","$B[12]","$B[13]","$B[14]","$B[15]");
$array2 = array("b" =>"ASD","ARD","CSD","CRD","RD","HRG","WSG","LBG","LSD","RAL","OBD","PFR","FAG","SAL","WD");
$result = array_intersect($array1, $array2);

print_r($result[0]);// out put Array
/*(
    [0] => 4
    [1] => ASD
    [2] => WD
    [3] => 
)
	ASD
*/
?>

ช่องที่ 2

<?php
 
function str2exp_1($string){
//echo $string."<br />\n";
	$multi = array('x','X');
	$str_exp = str_replace("\"","x2.54",$string);
	$str_exp = str_replace("cm","",$str_exp);
	$str_exp = str_replace($multi,"x",$str_exp);
	$str_exp = str_replace(" ","x",$str_exp);
	//$str_exp = str_replace("WD","$order_generation1",str_exp);
	//echo $str_exp;	
	$expression = explode("x",$str_exp);
	$expression = array_filter($expression);
	//print_r($expression);
	$result=1;
	foreach($expression as $val){
		if(strstr($val,"/")){
			list($a,$b) = explode("/",$val);
			$result *= ($a/$b);
		}else{
			$result *= $val;
	}
}
return $result;
}
?>

<?php


$size="$order_size1";
//echo $size;

$quiz = array("$size");

foreach($quiz as $each){
 //echo str2exp_1($each).' '."cm";
}

if($B[0]=="WD" or  $B[1]=="WD" or $B[2]=="WD" or $B[3]=="WD" or $B[3]=="WD"){
echo $mann=str2exp_1($each)+str2exp_1($each);
}else{
echo str2exp_1($each).' '."cm";
}
// output   7200 

?>