PHP Utf8::strrpos方法代码示例

 /**
  * @covers Patchwork\Utf8::strpos
  * @covers Patchwork\Utf8::stripos
  * @covers Patchwork\Utf8::strrpos
  * @covers Patchwork\Utf8::strripos
  */
 function testStrpos()
 {
     $this->assertSame(false, u::strpos('abc', ''));
     $this->assertSame(false, u::strpos('abc', 'd'));
     $this->assertSame(false, u::strpos('abc', 'a', 3));
     $this->assertSame(0, u::strpos('abc', 'a', -1));
     $this->assertSame(1, u::strpos('한국어', '국'));
     $this->assertSame(3, u::stripos('DÉJÀ', 'à'));
     $this->assertSame(1, u::stripos('aςσb', 'ΣΣ'));
     $this->assertSame(false, u::strrpos('한국어', ''));
     $this->assertSame(1, u::strrpos('한국어', '국'));
     $this->assertSame(3, u::strripos('DÉJÀ', 'à'));
     $this->assertSame(1, u::strripos('aςσb', 'ΣΣ'));
     $this->assertSame(16, u::stripos('der Straße nach Paris', 'Paris'));
 }

/**
 * Find the position of the last occurrence of a string in another string
 *
 * @param string $haystack
 * @param string $needle
 *
 * @return mixed
 *
 * @deprecated Deprecated since Contao 4.0, to be removed in Contao 5.0.
 *             Use Patchwork\Utf8::strrpos() instead.
 */
function utf8_strrpos($haystack, $needle)
{
    @trigger_error('Using utf8_strrpos() has been deprecated and will no longer work in Contao 5.0. Use Patchwork\\Utf8::strrpos() instead.', E_USER_DEPRECATED);
    return Utf8::strrpos($haystack, $needle);
}

/**
 * Finds the position of last occurrence of a string in a string.
 * @param string $haystack				The string from which to get the position of the last occurrence.
 * @param string $needle				The string to be found.
 * @param int $offset (optional)		$offset may be specified to begin searching an arbitrary position. Negative values will stop searching at an arbitrary point prior to the end of the string.
 * @param string $encoding (optional)	The used internally by this function character encoding. If it is omitted, the platform character set will be used by default.
 * @return mixed						Returns the numeric position of the first occurrence of $needle in the $haystack, or FALSE if $needle is not found.
 * Note: The first character's position is 0, the second character position is 1, and so on.
 * This function is aimed at replacing the functions strrpos() and mb_strrpos() for human-language strings.
 * @link http://php.net/manual/en/function.strrpos
 * @link http://php.net/manual/en/function.mb-strrpos
 */
function api_strrpos($haystack, $needle, $offset = 0, $encoding = null)
{
    return Utf8::strrpos($haystack, $needle, $offset);
}

 public function test_linefeed_search()
 {
     $str = "Iñtërnâtiônàlizætiø\nn";
     $this->assertEquals(19, u::strrpos($str, "\n"));
 }