I want to perform a case insensitive sub-string first appearance replacement.
I've tried this code :
$product_name_no_manufacturer = preg_replace("/$product_manufacturer/i","",$product_name, 1);
$product_name_no_manufacturer = trim($product_name_no_manufacturer);
but it doesn't work in some cases.
When -
$product_name = "3M 3M LAMP 027";
$product_manufacturer = "3m";
the result I get is :
"3M LAMP 027"
But when the parameters are different -
$product_name = "A+k A+k-SP-LAMP-027";
$product_manufacturer = "A+k";
the result I get is :
"A+k A+k-SP-LAMP-027"
Why preg_replace doesn't replace the first appearance of A+k
?