CodeInclude: php

To use php variable value inside html tag: We have taken a variable with name 'year' and value is set as '2014'. And the value of the variable has been used inside input text box inside the 'value' attribute .

<?php $year = 2014 ; ?>
Input text:<input type="text" value="<?php echo $year ; ?>"/>

You have to be very careful when using php inside html. With little mistake, you may not get result.

Note: Make sure the file extension ends with .php , as php is scripting language, so it needs a server to execute the php code.

Learn: How to write HTML inside php

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02 February 2017

Short Note on Types of Array in PHP

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01 February 2017

How to Replace space with Dash in PHP

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14 December 2013

php File Upload - Tutorial with Example

PHP: Hypertext Preprocessor,scripting language

PHP File Upload

Example HTML code for file upload:
Form_page.php

<html>
<body>

<form action="upload_file.php" method="post"
enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>

</body>
</html>

upload_file.php [Simple Code]

<?php
if ($_FILES["file"]["error"] > 0)
  {
  echo "Error: " . $_FILES["file"]["error"] . "<br />";
  }
else
  {
  echo "Upload: " . $_FILES["file"]["name"] . "<br />";
  echo "Type: " . $_FILES["file"]["type"] . "<br />";
  echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
  echo "Stored in: " . $_FILES["file"]["tmp_name"];
  }
?>

Parameters of $_FILES

$_FILES["file"]["name"] - the name of the uploaded file
$_FILES["file"]["type"] - the type of the uploaded file
$_FILES["file"]["size"] - the size in bytes of the uploaded file
$_FILES["file"]["tmp_name"] - the name of the temporary copy of the file stored on the server
$_FILES["file"]["error"] - the error code resulting from the file upload

upload_file.php [Code with Restriction on Upload, store the file in php temp folder]

upload_file.php [Code with Restriction on Upload, store the file in destination folder]

<?php
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 20000))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
    }
  else
    {
    echo "Upload: " . $_FILES["file"]["name"] . "<br />";
    echo "Type: " . $_FILES["file"]["type"] . "<br />";
    echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
    echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";

    if (file_exists("upload/" . $_FILES["file"]["name"]))
      {
      echo $_FILES["file"]["name"] . " already exists. ";
      }
    else
      {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
      }
    }
  }
else
  {
  echo "Invalid file";
  }
?>

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11 December 2013

How to decode JSON using PHP5 for Facebook application

The new Graph API helps to read and write data to Facebook. Every object in the social graph has a unique ID. You can fetch the data associated with an object by fetching https://graph.facebook.com/ID. For example, the official page for the Facebook Platform has id 19292868552, so you can fetch the object at https://graph.facebook.com/19292868552 All responses are JSON objects. Here is the code to decode JSON OBJECT / to get data from the graph api link .

Code Sample : //FETCHING THE JSON FROM THE URL

$jsonurl = "https://graph.facebook.com/". $user_id; $json = file_get_contents($jsonurl,0,null,null); $json_output = json_decode($json);

// THIS PRINTS THE WHOLE STRING OF JSON

var_dump( json_decode( $json,true)) ;

// ITS SAME AS YOU ARE USING it as an object

$user_firstName = $json_output->first_name;

//PRINTS THE FIRST NAME OF THE LOGGED IN USER

echo $user_firstName ;

You can also directly use the graph api for showing the profile picture. For example :

<img src="https://graph.facebook.com/<?= $user ?>/picture"/>

Link :

Graph API Facebook Documentation

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26 May 2012

How to stop this from showing in php5 ? :: Warning: Cannot modify header information - headers already sent by (output started at ::

PHP5 Problem:
"Warning: Cannot modify header information - headers already sent by (output started at "

This warning message can be corrected by deleting the empty spaces and lines
before and after the < ? php and ? > tags .

for example :
Error Format :

Corrected Format:

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17 November 2011

PHP MySQL data not showing from result after query

Nice and helpful post.

Output: Resource id #3

Solution: use mysql_fetch_row( $result ) in a while loop to get all result in an array..

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23 December 2010

How to use PHP bot to get Wikipedia definitions

This code helps to parse wikipedia definitions on given keyword.
Here is a code given that parse webpage using php with Curl extension.
A function is given which takes the keyword as input and outputs the array which holds the data.
$url : Holds the link to be parsed.

File name : wiki_parse.php

<?php

//FUNCTION THAT :PARAMETER - KEYWORD , AND RETURNS WIKI DEFINITION (IN ARRAY FORMAT)

function wikidefinition($s) {

//ENGLISH WIKI

    $url = "http://en.wikipedia.org/w/api.php?action=opensearch&search=".urlencode($s)."&format=xml&limit=1";
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HTTPGET, TRUE);
    curl_setopt($ch, CURLOPT_POST, FALSE);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_NOBODY, FALSE);
    curl_setopt($ch, CURLOPT_VERBOSE, FALSE);
    curl_setopt($ch, CURLOPT_REFERER, "");
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($ch, CURLOPT_MAXREDIRS, 4);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.1; he; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8");

    $page = curl_exec($ch);
    $xml = simplexml_load_string($page);
    if((string)$xml->Section->Item->Description) {
        return array((string)$xml->Section->Item->Text,
                     (string)$xml->Section->Item->Description,
                     (string)$xml->Section->Item->Url);
    } else {
        return "";
    }
}

//END OF FUNCTION WIKIDEFINITIONS

//USE OF FUNCTION

$data = wikidefinition('Bangladesh') ;
//var_dump( wikidefinition('bangladesh') ) ; //displays the array content
echo "Word:" . $data[0] . "<br/>";
echo "Definition:" . $data[1] . "<br/>";
echo "Link:" . $data[2] . "<br/>";

?>

Thanks to barattalo.it

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24 October 2010

Some useful PHP MYSQL functions

PHP MYSQL functions helps to connect to the database in MySQL software.
These are some of the most frequently used function names :

mysql_connect — Open a connection to a MySQL Server

mysql_create_db — Create a MySQL database

mysql_error — Returns the text of the error message from previous MySQL operation

mysql_fetch_array — Fetch a result row as an associative array, a numeric array, or both

mysql_num_rows — Get number of rows in result

mysql_query — Send a MySQL query

mysql_tablename — Get table name of field

mysql_close — Close MySQL connection

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09 February 2017

08 February 2017

07 February 2017

06 February 2017

04 February 2017

03 February 2017

For Example:

For Example:

02 February 2017

01 February 2017

14 December 2013

11 December 2013

Code Sample : //FETCHING THE JSON FROM THE URL

// THIS PRINTS THE WHOLE STRING OF JSON

// ITS SAME AS YOU ARE USING it as an object

//PRINTS THE FIRST NAME OF THE LOGGED IN USER

Link :

26 May 2012

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23 December 2010

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