如何从字符串中删除匹配的字符？

Question

这是我的代码

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

我想删除字符串中可用的所有逗号，我该怎么办？

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;

错误的分号和错误的函数参数。