php - Get seperate keys and values from string where all data is inline -

i using custom meta box class adding meta boxes in wordpress.
1 of fields using repeater field add multiple blocks of same fields 1 post.

when retrieve data, keys , values combined inside 1 string. see screenshot:

inside slide_re_ can see keys , values lot of different characters added.
need string

'slide_text_field_title => 'slide 1'

and rest of values.

how extract or filter data string?

what have there serialized array.

to convert array, use:

unserialize($array['slide_re_'])

TY