I am currently refining my custom website into a managed WordPress CMS.
The website I was working on is just my existing URL plus /dev/ , i.e. http://my.website.com/dev/ .
I will translate this website to http://my.website.com over the weekend, and so I will need to remove all links to the URL /dev/ .
What I would like to do is basically find and replace for /dev in my database. I see exactly in which tables this value is present, but, of course, according to the WordPress installation, quite a lot of these fields are serialized data that breaks into direct dump > open with notepad++ > find & replace .
The code I developed for this purpose is here:
<?php $look_at[] = array( "table" => "wp_options", "fields" => array( "option_value" ), "id_field" => "option_id" ); $look_at[] = array( "table" => "wp_postmeta", "fields" => array( "meta_value" ), "id_field" => "meta_id" ); $look_at[] = array( "table" => "wp_posts", "fields" => array( "post_content", "guid" ), "id_field" => "ID" ); $look_at[] = array( "table" => "wp_sfmeta", "fields" => array( "meta_value" ), "id_field" => "meta_id" ); $look_at[] = array( "table" => "wp_sfoptions", "fields" => array( "option_value" ), "id_field" => "option_id" ); $look_at[] = array( "table" => "wp_sferrorlog", "fields" => array( "error_text" ), "id_field" => "id" ); for ( $i = 0; $i < sizeof ( $look_at ); $i++ ) { foreach( $look_at[$i]["fields"] as $field ) { $sql = 'SELECT `' . $field . '`, `' . $look_at[$i]["id_field"] . '` FROM `' . $look_at[$i]["table"] . '`;'; $res = mysql_query( $sql ); while ( $row = mysql_fetch_assoc( $res ) ) { $table = $look_at[$i]["table"]; $id_field = $look_at[$i]["id_field"]; $old_val = $row[$field]; $id = $row[$id_field]; $unserialized_value = @unserialize( $old_val ); if ( $old_val === 'b:0;' || $unserialized_value !== false ) $new_val = serialize( str_replace( array( "/dev/", "/dev" ), array( "/", "" ), $unserialized_value ) ); else $new_val = str_replace( array( "/dev/", "/dev" ), array( "/", "" ), $old_val ); $update_array[] = array( "id_field" => $id_field, "id" => $id, "table" => $table, "key" => $key, "old_val" => $old_val, "new_val" => $new_val ); } } } for ( $i = 0; $i < sizeof( $update_array ); $i++ ) { if ( $update_array[$i]["old_val"] !== $update_array[$i]["new_val"] ) $updated_sql .= 'UPDATE ' . $update_array[$i]["table"] . ' SET `' . $update_array[$i]["key"] . '` = \'' . $update_array[$i]["new_val"] . '\' WHERE `' . $update_array[$i]["id_field"] . '` = \'' . $update_array[$i]["id"] . '\';'; } mysql_query( $updated_sql ); ?>
Example of serialized data:
a:6:{s:5:"width";s:3:"400";s:6:"height";s:3:"530";s:14:"hwstring_small";s:22:"height='96' width='72'";s:4:"file";s:30:"2011/12/Amazonas-English-1.jpg";s:5:"sizes";a:13:{s:9:"thumbnail";a:3:{s:4:"file";s:30:"Amazonas-English-1-125x165.jpg";s:5:"width";s:3:"125";s:6:"height";s:3:"165";}s:6:"medium";a:3:{s:4:"file";s:30:"Amazonas-English-1-339x450.jpg";s:5:"width";s:3:"339";s:6:"height";s:3:"450";}s:5:"large";s:0:"";s:14:"post-thumbnail";a:3:{s:4:"file";s:30:"Amazonas-English-1-125x165.jpg";s:5:"width";s:3:"125";s:6:"height";s:3:"165";}s:23:"indexleft-species-thumb";a:3:{s:4:"file";s:30:"Amazonas-English-1-200x265.jpg";s:5:"width";s:3:"200";s:6:"height";s:3:"265";}s:13:"species-thumb";a:3:{s:4:"file";s:30:"Amazonas-English-1-288x381.jpg";s:5:"width";s:3:"288";s:6:"height";s:3:"381";}s:17:"indexheader-thumb";a:5:{s:4:"file";s:30:"Amazonas-English-1-400x300.jpg";s:5:"width";s:3:"400";s:6:"height";s:3:"300";s:4:"path";s:38:"2011/12/Amazonas-English-1-400x300.jpg";s:3:"url";s:88:"http://www.xxxxxxxxxxx.com/dev/wp-content/uploads/2011/12/Amazonas-English-1-400x300.jpg";}s:14:"random-thumb-1";a:3:{s:4:"file";s:28:"Amazonas-English-1-56x75.jpg";s:5:"width";s:2:"56";s:6:"height";s:2:"75";}s:14:"random-thumb-2";a:3:{s:4:"file";s:29:"Amazonas-English-1-75x100.jpg";s:5:"width";s:2:"75";s:6:"height";s:3:"100";}s:14:"random-thumb-3";a:3:{s:4:"file";s:29:"Amazonas-English-1-94x125.jpg";s:5:"width";s:2:"94";s:6:"height";s:3:"125";}s:14:"random-thumb-4";a:3:{s:4:"file";s:30:"Amazonas-English-1-113x150.jpg";s:5:"width";s:3:"113";s:6:"height";s:3:"150";}s:14:"random-thumb-5";a:3:{s:4:"file";s:30:"Amazonas-English-1-132x175.jpg";s:5:"width";s:3:"132";s:6:"height";s:3:"175";}s:13:"d4p-bbp-thumb";s:0:"";}s:10:"image_meta";a:10:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";}}
ADDITIONAL IMAGE
Unfortunately, other serialized arrays have other instances of /dev/ , such as this example:
'a:1:{i:0;a:5:{s:4:"type";s:5:"image";s:3:"loc";s:107:"/home/xxxxx/domains/xxxxxxxxx.com/public_html/dev/wp-content/sp-resources/forum-image-uploads/matt/2012/01/";...
Or
a:1:{i:0;a:5:{s:4:"data";s:88:"Your search - <b>link:http://www.xxxxxxxxx.com/dev/</b> - did not match any documents. ";...
As such, I don’t think that a simple preg_replace (or callback) will do the trick, but I guess the advanced one can?
My questions:
- Is there an easier way to do this?
- Will the above code work with any problems?
I am terrible about problems with my code (poor programmer, I'm sorry) and as such I'm a little afraid of running tests using this code.
FINAL EDIT: WORK CODE
Since my SQL dump was almost 100mb , I had to use WAMP with unlimited memory.
<?php error_reporting(E_ALL); ini_set('display_errors', 'On'); ini_set('memory_limit', '-1'); $handle = @fopen("amend-this.sql", "r"); if ($handle) { while (($buffer = fgets($handle, 4096)) !== false) { $newLine = preg_replace_callback('@s:(\d+)(:\\\"[^"]*www.seriouslyfish\.com)/ dev@ ', create_function('$matches', 'return \'s:\'.($matches[1] - 4).$matches[2];'), $buffer); $newLine = preg_replace_callback('@s:(\d+)(:\\\"[^\\\"]*/home/sfish/domains/seriouslyfish\.com/public_html)/ dev@ ', create_function('$matches', 'return \'s:\'.($matches[1] - 4).$matches[2];'), $newLine); $newLine = str_replace('http://dunc.seriouslyfish.com/dev/', 'http://www.seriouslyfish.com/', $newLine); $newLine = str_replace('http://www.seriouslyfish.com/dev/', 'http://www.seriouslyfish.com/', $newLine); $newLine = str_replace('/dev', '', $newLine); file_put_contents( "amended.sql", $newLine, FILE_APPEND ); } fclose($handle); } ?>
This code places my new SQL file in the same directory ( X:\wamp\www ) so that I can manipulate further.
I had some problems with data repetition, and for some reason there were still 67 /dev instances in the file, but I used Notepad ++ and WinMerge to sort it all out and in the end it took me about 45 minutes to search / database replacements of over 90 million characters.