preg_replace - Kody, triki, sztuczki

23 maj 2016

Zmiana kliku tagów br na jeden

$html  = 'Nowy<br/><br/>tekst|Stary tekst';
$html = strstr( preg_replace('/(<br *\/*>)+/', '<br>', 
strip_tags( $html, '<b><br>')), '|', true);

22 sty 2013

Zamiana znanaków na spacje

$desc="Lublin, mapa Zamkowa

dziedziniec Zamku";

$desc=preg_replace('/[\r\t ]+/',' ',$desc);
echo $desc;

4 sty 2013

Usunięcie tagów html z tekstu

$art_text = preg_replace("/(align|class|style|clear)\=\"([^\"]*)\"/", '', $art_text);
$art_text = strip_tags($art_text, '<p><br><strong><b><em><u><strike>');
echo $art_text;

14 lut 2012

Wykorzystanie w ob_start funkcji callback

<?
$task='nowe';
function ob_callback($data) {
global $task;
return preg_replace("/\[\]/",'['.$task.']', $data);
}
ob_start('ob_callback');
? >

[]
1111
[]
22221
[]
1
65555

< ? ob_end_flush(); ? >

Wynik działania:
[nowe]
1111
[nowe]
22221
[nowe]
1 65555

4 sie 2009

Sprawdzanie osiągalności adresów url

function curlRequest($url) {
  $ch=curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_TIMEOUT, 10);
  curl_setopt($ch, CURLOPT_HEADER, 1);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_NOBODY, true);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

  $httpHeader = array(
    "Content-Type: text/xml; charset=UTF-8",
    "Content-Encoding: UTF-8"
  );

  curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeader);

  $data=curl_exec($ch);
  $info=curl_getinfo($ch);
  $errno=curl_getinfo( $ch, CURLINFO_HTTP_CODE );
  $finalurl=curl_getinfo( $ch, CURLINFO_EFFECTIVE_URL );

  curl_close($ch);

  if(preg_replace("/\/$/", "", $finalurl)==preg_replace("/\/$/", "", $url))
    $finalurl = ";
    return $errno.'|'.$finalurl;
}

$urls = 'www.wolakorybutowa.pl';
$tab_urls = preg_split('//', $urls, -1, PREG_SPLIT_OFFSET_CAPTURE);

for($i=0; $i $data = curlRequest('http://'.trim(chop($tab_urls[$i][0])));
  $tab_urls[$i][1] = $data;
}
print_r($tab_urls);