preg_replace(
'
/ start of pattern definition
js the literal string "js"
\/ a forward slash (quoted using \ as / is a reserved character being used to mark the beginning and end of the pattern)
editor the literal string "editor"
\/ a forward slash
filemanager the literal string "filemanager"
\/ a forward slash
connectors the literal string "connectors"
\/ a forward slash
php the literal string "php"
\/ a forward slash
connector the literal string "connector"
\. a forward slash
php the literal string "php"
(.*) any number of any characters . = any char, * = 0 or more of them - the parantheses says "remember this part"
$ the end of the string
/ end of pattern definition
',