如何從字符串中刪除匹配的字符？

Question

這裏是我的代碼

$a = "Hey there, how do i remove all, the comma from this string,"; 
$a = str_replace($a,',','';) 
echo $a; 

我想刪除所有的字符串中使用逗號，我該怎麼做呢？

Answer 1

$a = str_replace(",", "", $a); 

Answer 2

$a = "Hey there, how do i remove all, the comma from this string,"; 
$a = str_replace(',','',$a); 
echo $a; 

錯位分號和錯誤的函數參數。