regular expression replace

Hi;
i want to have a result like the follwoing by using regular expression
"锕=錒','锿=鎄','皑=皚','嗳=噯','蔼=藹','霭=靄','爱=愛','嫒=嬡";

but my code give me not right result, could anyone help, thanks
"锕=錒　锿=鎄　　皑=皚　　 嗳=噯　　蔼=藹　　霭=靄　　爱=愛　　 嫒=嬡";
<?php
$string = "锕=錒　锿=鎄　　皑=皚　　 嗳=噯　　蔼=藹　　霭=靄　　爱=愛　　 嫒=嬡";
$pattern = '/(\s)+/u';
$replacement = '\',\'';
echo preg_replace($pattern, $replacement, $string);
?>

try this one


<?php
$search="　　";
$replace="','";
$string="锕=錒　　锿=鎄　　皑=皚　　嗳=噯　　蔼=藹　　霭=靄　　爱=愛　　嫒=嬡";
echo str_ireplace($search,$replace,$string);
?>

Thanks a lot. works