From: Operating system: Linux, Windows PHP version: 5.3.3 Package: Strings related Bug Type: Bug Bug description:Invalid type (boolean) returned by substr() when providing an empty string
Description:
------------
substr() returns boolean false when providing an empty string as first
argument,
but it should return an empty string "".
Example:
<?php
$s = substr('', 0, 1);
echo gettype($s);
?>
Output:
boolean (false)
There is an *error in php documentation*:
http://pl.php.net/manual/en/function.substr.php
See the example for the third argument "Length":
>> $rest = substr("abcdef", 4, -4); // returns ""
That is not true, $rest contains FALSE and not "".
Cheers,
Cezary Tomczak
--
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Fixed in SVN and need be documented:
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