Name
substr
Synopsis
$string = substr($string1, $regexp, $string2)
This finds the substrings of string1 that match
the regular expression regexp. For each part of
the regular expression enclosed in parenthesis that matches, the
corresponding variable $1, $2,
$3, etc. is set with the value of the match. The
value of string2 is returned with variables
(including $1, $2,
$3, etc.) expanded.
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