使用php在一对2中分割逗号分隔的字符串

Question

I have a string having 128 values in the form of :

1,4,5,6,0,0,1,0,0,5,6,...1,2,3.

I want to pair in the form of :

(1,4),(5,6),(7,8)

so that I can make a for loop for 64 data using PHP.

Answer 1

<?php
$a = 'val1,val2,val3,val4';

function x($value)
    {
        $buffer = explode(',', $value);
        $result = array();

        while(count($buffer))
            { $result[] = array(array_shift($buffer), array_shift($buffer)); }

        return $result;
    }

$result = x($a);

var_dump($result);
?>

Shows:

array(2) { [0]=> array(2) { [0]=> string(4) "val1" [1]=> string(4) "val2" } [1]=> array(2) { [0]=> string(4) "val3" [1]=> string(4) "val4" } }

If modify it, then it might help you this way:

<?php
$a = '1,2,3,4';

function x($value)
    {
        $buffer = explode(',', $value);
        $result = array();

        while(count($buffer))
            { $result[] = sprintf('(%d,%d)', array_shift($buffer), array_shift($buffer)); }

        return implode(',', $result);
    }

$result = x($a);

var_dump($result);
?>

Which shows:

string(11) "(1,2),(3,4)"