Using preg_replace in laravel - php

Question

I have database data like text [mydata] some text [otherdata] some more text and I want to replace those [mydata] , [otherdata] with dynamic info such as category title for instance.
So the result of my data would be like:
text Category Title some text Category Desc some more text
instead of
text [mydata] some text [otherdata] some more text
I think that can be happen by preg_replace but not quite sure.
code
View::composer('*', function ($view) {
$notes = Notes::all();
foreach($notes as $note){
$descrip= $note->description;
}
$view->with('descrip', $descrip);
});
More
So basically $note->description content is this data:
text [mydata] some text [otherdata] some more text
I want to replace those elements by data from categories table.
Any idea?
Update
well i was digging and get code below (useing str_replace) however it has some issues,
View::composer('*', function ($view) {
//getting categories and pull out the values i want to use as `[....]`
$catC = Category::all();
foreach($catC as $catD){
$meta_title = $catD->title;
$meta_desc = $catD->meta_description;
$meta_tags = $catD->meta_tags;
}
//replace those categories values with element in database `[......]`
$seotemplates = SeoTemplate::all();
foreach($seotemplates as $seotemplate){
$myCustom = str_replace_array('[cattitle]', [$meta_title, $meta_desc, $meta_tags], $seotemplate->categories_desc_template);
}
$view->with('myCustom', $myCustom);
});
Issues
I can only get [cattitle] but what about [catmeta] & [cattags]?
$meta_title will always return first value from categories table (for example if i'm visiting HP category page it return ACER as [cattitle] or any other category pages i visit. It's always ACER
Update 2
I solved the issue 1 of my first update but still issue 2 remained, here is updated code
View::composer('*', function ($view) {
//categories
$catC = Category::all();
$catD = [];
foreach($catC as $catD){
$catD = [
$cattitle = $catD->title,
$catmeta = $catD->meta_tags,
$catdesc = $catD->meta_description
];
}
$a1 = array("[cattitle]","[catmeta]","[catdesc]");
$seotemplates = SeoTemplate::all();
foreach($seotemplates as $seotemplate){
$myCustom = str_replace($a1, $catD, $seotemplate->categories_desc_template);
}
$view->with('myCustom', $myCustom);
});
Current issue:
$meta_title will always return first value from categories table (for example if i'm visiting HP category page it return ACER as
[cattitle] or any other category pages i visit. It's always ACER

Answer 1

I see a couple of issues with your code that I think will help with getting the solution that you are after.
First like mentioned by #hktang said in his comment you are duplicating your variables and then assigning it's value over and over again instead of adding to it. Try this:
$catE = [];
foreach($catC as $catD){
$catE[] = [
$cattitle = $catD->title,
$catmeta = $catD->meta_tags,
$catdesc = $catD->meta_description
];
}
Second you are also resetting the value of $myCustom with each loop of the for each. Try this:
$myCustom = []
foreach($seotemplates as $seotemplate){
$myCustom[] = str_replace($a1, $catE, $seotemplate->categories_desc_template);
}
This should result in you getting an array of seotemplates with the values replaced but I have not testing this.