Hezké URL - problém s některými znaky – PHP – Fórum – Programujte.com

Dobrý večer, snažím se vytvořit hezké URL adresy tak, že z výchozího řetězce odstraním diakritiku a různé paznaky. Takto:

function url($text) {
   $text = strtr($text, "áäčďéěëíµňôóöŕřšťúůüýžÁÄČĎÉĚËÍĄŇÓÖÔŘŔŠŤÚŮÜÝŽ", "aacdeeeilnooorrstuuuyzaacdeeelinooorrstuuuyz");
        
   $text = preg_replace("~[^\\pL0-9_]+~u", "-", $text);
   $text = trim($text,"-");                          
   $text = StrToLower($text);
   $text = preg_replace("~[^-a-z0-9_]+~", "", $text);
     
   return $text;
}

Můj problém: pokud je ve výchozím textu např. znak: ´ , funkce nevrátí vůbec nic. Je nějaký způsob, jak mohu stoprocentně zajistit, aby se cokoliv, co uživatel zadá, správně převedlo na text hezké URL?
Děkuji za rady.

function prepis($retezec)
{
    $friendlyurl=Str_Replace(' ' ,'-',AddSlashes($retezec));
    $tbl = Array("\xc3\xa1"=>"a","\xc3\xa4"=>"a","\xc4\x8d"=>"c","\xc4\x8f"=>"d","\xc3\xa9"=>"e","\xc4\x9b"=>"e","\xc3\xad"=>"i","\xc4\xbe"=>"l","\xc4\xba"=>"l","\xc5\x88"=>"n","\xc3\xb3"=>"o","\xc3\xb6"=>"o","\xc5\x91"=>"o","\xc3\xb4"=>"o","\xc5\x99"=>"r","\xc5\x95"=>"r","\xc5\xa1"=>"s","\xc5\xa5"=>"t","\xc3\xba"=>"u","\xc5\xaf"=>"u","\xc3\xbc"=>"u","\xc5\xb1"=>"u","\xc3\xbd"=>"y","\xc5\xbe"=>"z","\xc3\x81"=>"A","\xc3\x84"=>"A","\xc4\x8c"=>"C","\xc4\x8e"=>"D","\xc3\x89"=>"E","\xc4\x9a"=>"E","\xc3\x8d"=>"I","\xc4\xbd"=>"L","\xc4\xb9"=>"L","\xc5\x87"=>"N","\xc3\x93"=>"O","\xc3\x96"=>"O","\xc5\x90"=>"O","\xc3\x94"=>"O","\xc5\x98"=>"R","\xc5\x94"=>"R","\xc5\xa0"=>"S","\xc5\xa4"=>"T","\xc3\x9a"=>"U","\xc5\xae"=>"U","\xc3\x9c"=>"U","\xc5\xb0"=>"U","\xc3\x9d"=>"Y","\xc5\xbd"=>"Z","'"=>"",",-"=>"kc");
    $url = StrTr($friendlyurl, $tbl);
    $address = StrTr ($url, "ÁÄČÇĎÉĚËÍŇÓÖŘŠŤÚŮÜÝŽáäčçďéěëíňóöřšťúůüýž ", "AACCDEEEINOORSTUUUYZaaccdeeeinoorstuuuyz-");
    $address = Preg_Replace ("/[^[:alpha:][:digit:]]/", "-", $address);
    $address = Trim ($address, "-");
    $address = Preg_Replace ("/[-]+/", "-", $address);
  return $address;
}

tuhle funkci jsem nějak ukradl odsud z článku a ještě z nějakejch webů a funguje docela dobře :)

http://www.testing.jabko.net/coolurl.php

#2 CZechBoY
Díky moc za kód. Přidal jsem nakonec funkci pro zmenšení velkých znaků. Možná to někdo řeší, já třeba nechci velká písmena v url.

$address = strtolower($address);

Výsledek je tedy :

<?php
$titulek="pšouček půjčka S -< Bobříkama kašička zpěvníček žabička řeřicha";
echo $titulek."<br><br>";

function prepis($retezec)
{
    $friendlyurl=Str_Replace(' ' ,'-',AddSlashes($retezec));
    $tbl = Array("\xc3\xa1"=>"a","\xc3\xa4"=>"a","\xc4\x8d"=>"c","\xc4\x8f"=>"d","\xc3\xa9"=>"e","\xc4\x9b"=>"e","\xc3\xad"=>"i","\xc4\xbe"=>"l","\xc4\xba"=>"l","\xc5\x88"=>"n","\xc3\xb3"=>"o","\xc3\xb6"=>"o","\xc5\x91"=>"o","\xc3\xb4"=>"o","\xc5\x99"=>"r","\xc5\x95"=>"r","\xc5\xa1"=>"s","\xc5\xa5"=>"t","\xc3\xba"=>"u","\xc5\xaf"=>"u","\xc3\xbc"=>"u","\xc5\xb1"=>"u","\xc3\xbd"=>"y","\xc5\xbe"=>"z","\xc3\x81"=>"A","\xc3\x84"=>"A","\xc4\x8c"=>"C","\xc4\x8e"=>"D","\xc3\x89"=>"E","\xc4\x9a"=>"E","\xc3\x8d"=>"I","\xc4\xbd"=>"L","\xc4\xb9"=>"L","\xc5\x87"=>"N","\xc3\x93"=>"O","\xc3\x96"=>"O","\xc5\x90"=>"O","\xc3\x94"=>"O","\xc5\x98"=>"R","\xc5\x94"=>"R","\xc5\xa0"=>"S","\xc5\xa4"=>"T","\xc3\x9a"=>"U","\xc5\xae"=>"U","\xc3\x9c"=>"U","\xc5\xb0"=>"U","\xc3\x9d"=>"Y","\xc5\xbd"=>"Z","'"=>"",",-"=>"kc");
    $url = StrTr($friendlyurl, $tbl);
    $address = StrTr ($url, "ÁÄČÇĎÉĚËÍŇÓÖŘŠŤÚŮÜÝŽáäčçďéěëíňóöřšťúůüýž ", "AACCDEEEINOORSTUUUYZaaccdeeeinoorstuuuyz-");
    $address = Preg_Replace ("/[^[:alpha:][:digit:]]/", "-", $address);
    $address = Trim ($address, "-");
    $address = Preg_Replace ("/[-]+/", "-", $address);
    $address = strtolower($address);
    return $address;
}
echo prepis($titulek);
?>

https://mlich.zam.slu.cz/wys4.htm

// muj js kod
odstranDiakritiku(str) - zbav se diakritiky (abyde ti AZaz09 a bordel)
.toLowerCase() - zmen na mala pismena (zbyde az09 a bordel)
.replace(new RegExp('[^a-z0-9]+','g'),'_') - nahrad vse, co neni pismeno nebo cislo (a opakovani) podtrzitkem _ (zbyde az09 a podtrzitka pred-za-mezi znaky)
.replace(new RegExp('(^_)|(_$)','g'),''); - odstran podtrzitka ze zacatku a z konce

v jakemsi html2pdf pouzivaji tuto funkci na diakritiku - maji tam nektere znaky navic, jine vubec. Momentalce nemuzu najit nejakou vlastni funkci. mozna jednu.

	function _iso2ascii($s) {
		$iso="áäčďéěíľĺňóöőôřŕšťúůüűýžÁÄČĎÉĚÍĽĹŇÓÖŐÔŘŔŠŤÚŮÜŰÝŽ";
		$asc="aacdeeillnoooorrstuuuuyzAACDEEILLNOOOORRSTUUUUYZ";
		return strtr($s,$iso,$asc);
	}

function odstranDiakritiku($subject)
	{
	$search  = array("á","ä","č","ď","é","ě","í","ĺ","ľ","ň","ó","ô","ö","ŕ","š","ť","ú","ů","ü","ý","ř","ž","Á","Ä","Č","Ď","É","Ě","Í","Ĺ","Ľ","Ň","Ó","Ô","Ö","Ŕ","Š","Ť","Ú","Ů","Ü","Ý","Ř","Ž");
	$replace = array("a","a","c","d","e","e","i","l","l","n","o","o","o","r","s","t","u","u","u","y","r","z","A","A","C","D","E","E","I","L","L","N","O","O","O","R","S","T","U","U","U","Y","R","Z");
	return str_replace($search, $replace, $subject);
	}

Jinymi slovy, zkus si tam dat mereni casu, a tva funkce by to mela delat mnohem pomaleji. Navic dela nektere veci uplne zbytecne :)
Proc treba na zacatku nahrazovat mezeru minuskem, kdyz pozdeji nahrazuje non-alfa, non-digit za minus, mezera do toho take spada :)