Skip to main content

implode

NAME​

implode() - concatenate strings

SYNOPSIS​

string implode( mixed *arr, string del );
mixed implode( mixed *arr, function f, void | mixed extra );

DESCRIPTION​

In the first form, concatenate all strings found in array 'arr', with
the  string  'del' between each element. Only strings are used from the
array; elements that are not strings are ignored.

In the second form, when the second argument is a function, implode()
instead  reduces  the  array: it combines the elements left to right by
repeatedly  calling  'f'  with the running result and the next element
(a fold), and returns whatever the final call returns. The optional
'extra' argument, when present, is used as the starting value.

RETURN VALUE​

The joined string for the delimiter form, or the accumulated value
(any type) for the function form.

SEE ALSO​

explode(3), sprintf(3), filter(3), map(3)