php remove curly braces and content inside retrieve remaining

Question

want to remove particular text of php string which is inside braces including braces it should removed....

Data string as shown following...

<         


        

Answer 1

Using regex,

$text='{page:header}
this text should not be removed
{menu_list:menu_list_2}
this text should not be removed
{page:footer}'
$data = preg_replace("/\{[^}]+\}/", "", $text);
print_r($data); // answer will be as follow
this text should not be removed
this text should not be removed