1 styczeń 2016

Optymalizacja wordpress

Poniżej kilka trików które pozwoliły mi przyspieszyć bloga z 32/22 w PageSpeed Insigth do 90/100 - oczywiście to zależy od strony, ilości zdjęć, szybkości serwera itp, wszystko ma znaczenie.
I to jest blog ze zdjęciami (blog.grzegorztomicki.pl), jak dla mnie bardzo zacnie 🙂

1. Będziemy potrzebować dostęp do .htaccess
W którym dodajemy (nie będę opisywał co dokładnie jest w nim robione bo wszystko można znaleźć opisane w internecie)

<ifmodule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
#</ifmodule>



<ifmodule mod_deflate.c>
  # Compress HTML, CSS, JavaScript, Text, XML and fonts
  AddOutputFilterByType DEFLATE application/javascript
  AddOutputFilterByType DEFLATE application/rss+xml
  AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
  AddOutputFilterByType DEFLATE application/x-font
  AddOutputFilterByType DEFLATE application/x-font-opentype
  AddOutputFilterByType DEFLATE application/x-font-otf
  AddOutputFilterByType DEFLATE application/x-font-truetype
  AddOutputFilterByType DEFLATE application/x-font-ttf
  AddOutputFilterByType DEFLATE application/x-javascript
  AddOutputFilterByType DEFLATE application/xhtml+xml
  AddOutputFilterByType DEFLATE application/xml
  AddOutputFilterByType DEFLATE font/opentype
  AddOutputFilterByType DEFLATE font/otf
  AddOutputFilterByType DEFLATE font/ttf
  AddOutputFilterByType DEFLATE image/svg+xml
  AddOutputFilterByType DEFLATE image/x-icon
  AddOutputFilterByType DEFLATE text/css
  AddOutputFilterByType DEFLATE text/html
  AddOutputFilterByType DEFLATE text/javascript
  AddOutputFilterByType DEFLATE text/plain
  AddOutputFilterByType DEFLATE text/xml

  # Remove browser bugs (only needed for really old browsers)
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4\.0[678] no-gzip
  BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
  Header append Vary User-Agent
</ifmodule>

<ifmodule mod_expires.c>
  ExpiresActive on

# Perhaps better to whitelist expires rules? Perhaps.
  ExpiresDefault                          "access plus 1 month"

# cache.appcache needs re-requests in FF 3.6 (thx Remy ~Introducing HTML5)
  ExpiresByType text/cache-manifest       "access plus 0 seconds"



# Your document html
  ExpiresByType text/html                 "access plus 0 seconds"

# Data
  ExpiresByType text/xml                  "access plus 0 seconds"
  ExpiresByType application/xml           "access plus 0 seconds"
  ExpiresByType application/json          "access plus 0 seconds"

# RSS feed
  ExpiresByType application/rss+xml       "access plus 1 hour"

# Favicon (cannot be renamed)
  ExpiresByType image/x-icon              "access plus 1 week" 

# Media: images, video, audio
  ExpiresByType image/gif                 "access plus 1 month"
  ExpiresByType image/png                 "access plus 1 month"
  ExpiresByType image/jpg                 "access plus 1 month"
  ExpiresByType image/jpeg                "access plus 1 month"
  ExpiresByType video/ogg                 "access plus 1 month"
  ExpiresByType audio/ogg                 "access plus 1 month"
  ExpiresByType video/mp4                 "access plus 1 month"
  ExpiresByType video/webm                "access plus 1 month"

# HTC files  (css3pie)
  ExpiresByType text/x-component          "access plus 1 month"

# Webfonts
  ExpiresByType font/truetype             "access plus 1 month"
  ExpiresByType font/opentype             "access plus 1 month"
  ExpiresByType application/x-font-woff   "access plus 1 month"
  ExpiresByType image/svg+xml             "access plus 1 month"
  ExpiresByType application/vnd.ms-fontobject "access plus 1 month"

# CSS and JavaScript
  ExpiresByType text/css                  "access plus 1 year"
  ExpiresByType application/javascript    "access plus 1 year"
  ExpiresByType text/javascript           "access plus 1 year"

  </ifmodule><ifmodule mod_headers.c>
    Header append Cache-Control "public"
    Header unset ETag
    FileETag None
  </ifmodule>
18 Maj 2014

Sprawdzenie czy w pliku zanajdują się wybrane imiona

format pliku (ludzie.txt):
karolina
pawel
kajetan

funkcja:

function get_data_from_file($param = null) {
  $file = $param['file'];
  $data_file = file_get_contents($file);
  $data_tmp = preg_split("//", $data_file);
  return $data_tmp;
}

uruchomienie:

$ludzie=get_data_from_file(array('file'=&gt;'ludzie.txt'));
if(in_array("pawel", $ludzie)) {
$is_in_ludzie=true;
}
6 listopad 2013

Wykorzystanie sesji do przechowywania zapytań sql

Php:
Zapamiętanie zapytania w sesji, przekazanego z formularza metodą POST

session_start();
$add_sql=true;
$sql=$_POST['sql'];
$data_sql=$_SESSION['data_sql'];
for($i=0,$c=count($data_sql);$i<$c;$i++) {
if($sql==$data_sql[$i]) {
$add_sql=false;
break;
}
}
if($add_sql && $sql)
$_SESSION['data_sql'][]=$_POST['sql'];
session_write_close();

Html:
Wygenerowanie html strony

<select style="width:900" id="select_sql">
<?
$data_sql=$_SESSION['data_sql'];
for($i=0,$c=count($data_sql);$i<$c;$i++) {
echo '<option>'.$data_sql[$i].'</option>';
}
?>
</select>