mirror_php/moodle
1
0
Fork 0
mirror of https://github.com/moodle/moodle.git synced 2025-04-14 04:52:36 +02:00
Code Issues Projects Releases Wiki Activity

MDL-40877 core_text: Added UTF-8 safe strrchr method

Browse Source
This commit is contained in:
Frederic Massart 2013-08-16 10:21:01 +08:00
parent 838d78a9ff
commit aa87fe80b3
2 changed files with 42 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
lib/classes/text.php
View File

@ -238,6 +238,36 @@ class core_text {
return $result;
}
/**
* Finds the last occurrence of a character in a string within another.
* UTF-8 ONLY safe mb_strrchr().
*
* @param string $haystack The string from which to get the last occurrence of needle.
* @param string $needle The string to find in haystack.
* @param boolean $part If true, returns the portion before needle, else return the portion after (including needle).
* @return string|false False when not found.
* @since 2.4.6, 2.5.2, 2.6
*/
public static function strrchr($haystack, $needle, $part = false) {
if (function_exists('mb_strrchr')) {
return mb_strrchr($haystack, $needle, $part, 'UTF-8');
}
$pos = self::strrpos($haystack, $needle);
if ($pos === false) {
return false;
}
$length = null;
if ($part) {
$length = $pos;
$pos = 0;
}
return self::substr($haystack, $pos, $length, 'utf-8');
}
/**
* Multibyte safe strlen() function, uses mbstring or iconv for UTF-8, falls back to typo3.
*
@ -331,7 +361,7 @@ class core_text {
* @return int the numeric position of the last occurrence of needle in haystack
*/
public static function strrpos($haystack, $needle) {
if (function_exists('mb_strpos')) {
if (function_exists('mb_strrpos')) {
return mb_strrpos($haystack, $needle, null, 'UTF-8');
} else {
return iconv_strrpos($haystack, $needle, 'UTF-8');

11
lib/tests/text_test.php
View File

@ -360,5 +360,16 @@ class core_text_testcase extends advanced_testcase {
$this->assertSame($textlib->specialtoascii('ábc'), 'abc');
$this->assertSame($textlib->strtotitle('abc ABC'), 'Abc Abc');
}
/**
* Test strrchr.
*/
public function test_strrchr() {
$str = "Žluťoučký koníček";
$this->assertSame('koníček', core_text::strrchr($str, 'koní'));
$this->assertSame('Žluťoučký ', core_text::strrchr($str, 'koní', true));
$this->assertFalse(core_text::strrchr($str, 'A'));
$this->assertFalse(core_text::strrchr($str, 'ç', true));
}
}