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--TEST--
Test mb_substr() function : error conditions - Pass an unknown encoding
--SKIPIF--
<?php
extension_loaded('mbstring') or die('skip');
function_exists('mb_substr') or die("skip mb_substr() is not available in this build");
?>
--FILE--
<?php
/*
* Pass an unknown encoding to mb_substr() to test behaviour
*/
echo "*** Testing mb_substr() : error conditions ***\n";
$str = 'Hello, world';
$start = 1;
$length = 5;
$encoding = 'unknown-encoding';
try {
var_dump( mb_substr($str, $start, $length, $encoding));
} catch (\ValueError $e) {
echo $e->getMessage() . \PHP_EOL;
}
?>
--EXPECT--
*** Testing mb_substr() : error conditions ***
mb_substr(): Argument #4 ($encoding) must be a valid encoding, "unknown-encoding" given
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