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--TEST--
Test trim() function : basic functionality
--FILE--
<?php
/* Prototype : string trim ( string $str [, string $charlist ] )
* Description: Strip whitespace (or other characters) from the beginning and end of a string.
* Source code: ext/standard/string.c
*/
echo "*** Testing trim() : basic functionality ***\n";
$text = " \t\r\n\0\x0B ---These are a few words--- \t\r\n\0\x0B ";
$hello = "!===Hello World===!";
$binary = "\x0A\x0DExample string\x0A\x0D";
echo "\n-- Trim string with all white space characters --\n";
var_dump(trim($text));
echo "\n-- Trim non-whitespace from a string --\n";
var_dump(trim($hello, "=!"));
echo "\n-- Trim some non-white space characters from a string --\n";
var_dump(trim($hello, "Hdle"));
echo "\n-- Trim the ASCII control characters at the beginning of a string --\n";
var_dump(trim($binary, "\x00..\x1F"));
?>
===DONE===
--EXPECT--
*** Testing trim() : basic functionality ***
-- Trim string with all white space characters --
string(27) "---These are a few words---"
-- Trim non-whitespace from a string --
string(11) "Hello World"
-- Trim some non-white space characters from a string --
string(19) "!===Hello World===!"
-- Trim the ASCII control characters at the beginning of a string --
string(14) "Example string"
===DONE===
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