The substr_replace Function
The substr_replace function replaces a specified
part of a string with another. This function cuts out
a specified part of a string (parameters specify
where to start cutting and how many characters
to take) and replaces the cut-out part with the specified
string. If the last parameter is not specified,
the replacement will be performed until the end of the string.
Syntax
substr_replace(array|string $string, array|string $replace, array|int $offset, array|int|null $length = null): string|array
Example
Let's cut out characters from the string, starting
from the first one (character numbering starts
from zero), 3 pieces, and insert
'!!!' instead:
<?php
echo substr_replace('abcde', '!!!', 1, 3);
?>
Code execution result:
'a!!!e'
Example
Let's cut out characters from the string, starting
from the first one to the end of the string (since the last
parameter is not specified) and insert
'!!!' instead:
<?php
echo substr_replace('abcde', '!!!', 1);
?>
Code execution result:
'a!!!'
See Also
-
the
str_replacefunction,
which performs search and replace within a string -
the
substrfunction,
which extracts a part of a substring
