php正则表达式匹配键值对

Question

I have a string like as below.

$string = "height=175cm weight=70kgs age=25yrs"

String contents are key value pairs each pair are separated by a Tab. I want each key value pairs as separate variable and prints out each. I have tried with below code but i am not getting proper result please help me where i went wrong.

$string = "height=175cm weight=70kgs age=25yrs";
$pattern = "(([^=]*)\s*=\s*(.*))";
if (preg_match($pattern,$string,$match)) {
    echo "<pre>";
    print_r($match);
} else {
    echo "not matche
";
}

Result:

Array
(
    [0] => height=175cm weight=70kgs age=25yrs
    [1] => height
    [2] => 175cm weight=70kgs age=25yrs
)

Answer 1

You can use this code:

$string = "height=175cm weight=70kgs    age=25yrs";
if (preg_match_all('/\s*([^=]+)=(\S+)\s*/', $string, $matches)) {
   $output = array_combine ( $matches[1], $matches[2] );
   print_r($output);   
}

OUTPUT:

Array
(
    [height] => 175cm
    [weight] => 70kgs
    [age] => 25yrs
)