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The following php function will return an array(0-10) of image URLs.

<?php
/* Returns 10 image URLs array */
function images_search($se, $kw){
 $icount=0;
 $image =array();
 if($se=="Bing"){
 $imgs = 'http://www.bing.com/images/search?q='.urlencode(trim($kw));
 $imgs = file_get_contents($imgs);
 preg_match_all("/<span class="md_mu">(.*?)</span>/is", $imgs, $imgu, PREG_PATTERN_ORDER);

 shuffle($imgu[1]);
 $iv = array_values($imgu[1]);

 for($j=0; $j < count($iv);$j++)
 if(strpos($iv[$j],'"')>-1 || strpos($iv[$j],'""')>-1) continue;
 elseif(@fclose(@fopen($iv[$j], "r"))){  
 $image[$icount]=$iv[$j];
 $icount++;
 if($icount==10)
 break;
 }
 }else{
 $start=rand(0,9)*20+1;
 $imgs= 'http://images.google.com/images?gbv=2&hl=en&q='.urlencode(trim($kw)).'&sa=N&start='.$start.'&ndsp=30';
 $imgs = file_get_contents($imgs);
 preg_match_all("/x3dhttp:(.*?).jpg/is", $imgs, $imgu, PREG_PATTERN_ORDER);

 shuffle($imgu[1]);
 $iv = array_values($imgu[1]);

 for($j=0;$j<count($iv);$j++)
 if(strpos($iv[$j],'"')>-1 || strpos($iv[$j],'""')>-1) continue;
 elseif(@fclose(@fopen('http:'.$iv[$j].'.jpg', "r"))){  
 $image[$icount]='http:'.$iv[$j].'.jpg';
 $icount++;
 if($icount==10)
 break;     
 }
 }
 return $image;
}
?>

Use this function like this:

<?php

// Call function like

$google_images = images_search('Bing', 'doctors');

// or

$bing_images = images_search('Google', 'forex');

?>

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There are cases when a php developers need to insert mysql data with strings which containing single or double quotes. Mysql  gives error or will not save data if we do not properly escape the string formation characters. To escape these characters php have a function {mysql_real_escape_string()}. This function can be used to format the mysql strings with escaping. e.g.

<?php

$escaped_mystring = mysql_real_escape_string($mystring);

?>

Now if you run the query after escaping it will save the string wit out any error.

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In doing a project for backlinks in php, I came across a problem. When a link is saved in database then if user reload the page, the script re-save the data. So I want a solution that on reloading browser the post data should not save. I searched for it but could not find some proper solution. Here is what i did:

<?php
if(!isset($_REQUEST['ok']))
{
  // database query to save post data...
  Header("Location: same_page.php?ok=true");
}
?>

So when you send header on same page but with a request variable which set now this time, it will not allow the query to save same information again. So on hitting reload the form will not submit and you can also stay on the same page.

Note: If you use this method and do not send a request variable, then it will become infinite loop.

Here are some other to try:

Use a meta refresh,

You can also just add a session variable when the form has been submitted successfully. Then on the same time check if the session variable is set before you resubmit the form.

Then it would not matter if the same post data is resubmit, since the session variable would be set.

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It is easy to transfer/upload a file from one server to an other from php scripts. You have to use php ftp functions. If you have ftp access to other server(host, username, password), then you can follow following steps to upload a file from your loacl or from remote server to any other server.

1.First connect to the server where you want to send the file as:

$ftp=ftp_connect(“ftp.yourdomain.com”);

This will connect your php script to the other server.

2.Now open the file which you want to transfer or upload as:

$fp=fopen(‘myimage.jpg’, “r”);

You can open any file even any remote file using full file path.

3.Now login to ftp host using “username” and “password”.

ftp_login($ftp, “username”, “password”);

4.Now upload the file as:

ftp_fput($ftp, “public_html/myimage.jpg”, $fp, FTP_BINARY);

This function will put the file in public_html folder with same file name but you can use any name instead of “myimage.jpg”, the file will transfer with new name.

5.At end close ftp and opened file.
ftp_close($ftp);
fclose($fp);

Note: Here you need to specify the “public_html” folder name as most ftp give access to the main cPanel folder but if your ftp direct login in “public_html” then you don’t need to specify the “public_html” folder, just put file name. If you you are upolading file to any internal folder then you specify that folder name. Suppose you want upload the file to images folder then follow this:

ftp_fput($ftp, “public_html/images/myimage.jpg”, $fp, FTP_BINARY);

Full Code:

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In some cases php developers don’t have permissions to use php copy function or face difficulty to use it. For that there is a simple way to copy a file from one place to other.

To do so get the contents of the file you want to copy, suppose you have a file, “test.php” and want to copy it. i.e

$copy=file_get_contents(“test.php”);

Next open a new file in the location where you want to copy the file. Suppose you want to copy in the directory “data”, then do as:

$fp=fopen(“data/test.php”,”w”);

This will open a new file in “data” directory with “test.php” name. You can use any other name you want. Now write the file contents to newly open file and close the the file source.

fwrite($fp,$copy);
fclose($fp);

This will write all the content stored in $copy variable to the new file. If you are using this method to move a file then at the end just use the unlink(delete) function to delete the original file. Here is a complete code:

Remember you must have the write permission to “data” directory in order to create new file. i.e chmod 777.

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