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<!DOCTYPE html> <html> <body> <?php echo substr_replace("world","Hello ",0,0); ?> </body> </html>
x
<!DOCTYPE html>
<
html
>
<
body
>
<?php
echo
substr_replace
(
"world"
,
"Hello "
,
0
,
0
);
?>
</
body
>
</
html
>
Hello world
