Knah-Tsaeb/MyShaarli
Knah-Tsaeb/MyShaarli
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

smallHash: simplified and improved performance

Browse source 
Unchanged behaviour
This commit is contained in:
Alexandre Alapetite 2013-11-10 22:50:34 +01:00
parent 7b2186a63e
commit c002ca9c6b
1 changed files with 2 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
index.php
View file

@ -221,7 +221,7 @@ function nl2br_escaped($html)
return str_replace('>','&gt;',str_replace('<','&lt;',nl2br($html))); return str_replace('>','&gt;',str_replace('<','&lt;',nl2br($html)));
} }
/* Returns the small hash of a string /* Returns the small hash of a string, using RFC 4648 base64url format
eg. smallHash('20111006_131924') --> yZH23w eg. smallHash('20111006_131924') --> yZH23w
Small hashes: Small hashes:
- are unique (well, as unique as crc32, at last) - are unique (well, as unique as crc32, at last)
@ -233,10 +233,7 @@ function nl2br_escaped($html)
function smallHash($text) function smallHash($text)
{ {
$t = rtrim(base64_encode(hash('crc32',$text,true)),'='); $t = rtrim(base64_encode(hash('crc32',$text,true)),'=');
$t = str_replace('+','-',$t); // Get rid of characters which need encoding in URLs. return strtr($t, '+/', '-_');
$t = str_replace('/','_',$t);
$t = str_replace('=','@',$t);
return $t;
} }
// In a string, converts urls to clickable links. // In a string, converts urls to clickable links.