How do you retrieve an image from a database using PHP?
It depends what Database you are using. I personally use MySQL so will explain how you would do it using MySQL. You would have to create the MySQL database. I would store the image URL rather than the actual image. Then call it using PHP and a MySQL query. For Example: $sql = "SELECT * FROM Images WHERE Img_Name = 'img1'"; $query = mysql_query($sql); $array = mysql_fetch_array(query); then you would call it into HTML like so:
How do you output a star using PHP?
type this in a file save it as something.php and then run it
<?php
echo '*';
?>
In Drupal, taxonomy is a way of organizing content by applying categories or tags to it. This helps to classify and group similar content together, making it easier for users to find and navigate through the website. Taxonomy terms can be hierarchical, allowing for more complex organization structures.
Symfony was created in 2005 by Fabien Potencier and has since become one of the most popular PHP web application frameworks.
Session is stateless or statefull based on work to be done. This answers "why?".
In case of a web server each each request we make to the web server is stateless mean independent of another request. Therefore we use $_SESSION and $_COOKIES to keep state of a server script variable across requests.
A work can be performed within a single method invocation(request to the web server), or it may span multiple method invocations(example: statefull bean in java)
If you will read this link http://www.java-samples.com/showtutorial.php?tutorialid=841 and will work on java bean, the statefull nature of a bean will be clear. In this user object(a java bean) has to keep it's state across multiple methods invocation by the client.
Nonetheless all causes related to work we do on day to day basis may be difficult to find out and to interpret even if we find out them.
Zen Studio for PHP is an integrated development environment (IDE) specifically designed for PHP web development. It provides features like code editing, debugging, and profiling to help developers write and maintain PHP code efficiently. Zen Studio also offers integrations with popular PHP frameworks and tools to streamline the development process.
How do you convert Text-to-Speech with PHP?
I have used festival with PHP for TTS program. Its very simple to use. If you are running linux, you can simply use "yum install festival" command to install festival package. This package is required for TTS program to work. Windows users can use cygwin to build festival package and place its .so file bin directory of PHP. Once you are done with installation of festival, you can move on to write PHP code that will convert your text to voice recording. Following is the code that creates recording from your text. I have written text into the variable that you can change:
<?php
//create a random number filename
$filename = 'test.txt';
$text = 'This text will be converted to audio recording';
$outputfile = basename($filename, ".txt");
$outputfile = $outputfile . '.wav';
if (!$handle = fopen($filename, "w"))
{
return false;
}
// Write $text to our opened file.
if (fwrite($handle, $text) === FALSE)
{
//couldn't write the file. Check permissions
return false;
}
fclose($handle);
//initialise and execute the festival C engine
$cmd = "text2wave $filename -o $outputfile";
//execute the command
exec($cmd);
unlink($filename);
echo "Recording is successful. \nRecording File: " . $outputfile;
//finally return the uptput file path and filename
return $outputfile;
?>
<a href="weblink">convert-text-to-speech</a>
Code of find vowels in string in php?
$vowel_arr=array('a','e','i','o','u');
$string="This is my sentence";
$len=strlen($string);
$vowel_cnt=0;
for($i=0;$i<$len;$i++)
{
if(in_array($string[$i],$vowel_arr))
$vowel_cnt++;
else
continue;
}
echo "Total Vowel count is: ".$vowel_cnt;
How do you pass information from search pages to results pages using php?
One way to pass information from search pages to results pages in PHP is to use query parameters in the URL. You can append the search query as a parameter in the URL of the results page, and then retrieve this parameter using PHP's $_GET superglobal array to display the relevant results. Another common method is to use sessions to store the search query information and access it on the results page.
How do you get information from a form that is submitted using the get method?
In a form submitted using the GET method, the data is appended to the URL as query parameters. You can access this data using the $_GET
superglobal array in PHP, or by parsing the URL in other programming languages.
What is specialization in dbms?
Specialization in database management refers to the process of creating subtypes from a supertype entity in an entity-relationship (ER) model. It allows for the customization and organization of data based on unique characteristics within a specific subset of the main entity. This helps in categorizing and structuring data more efficiently.
How do you retrieve data stored in the database into the textarea using PHP?
<?php
// Connect to the database
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password') or die('Could not connect: ' . mysql_error());
mysql_select_db('foo', $link) or die('Can\'t use foo : ' . mysql_error());
// Retrieve the content
$sql = "SELECT my_info FROM my_table WHERE id = '42';
$result = mysql_query($sql,$link);
// Now assign a value
$row = mysql_fetch_assoc($result);
// "Wrap" the result in a textarea
echo '<textarea name="bob" rows="10" cols="40">';
echo $row["my_info"];
echo '</textarea>';
?>
... this will work for a single value retrieved from a single row. For a more in depth look at retrieving values from a DB visit:
http://au2.php.net/manual/en/function.mysql-query.php
For a complete textarea reference, visit:
http://www.w3schools.com/tags/tag_textarea.asp
Hope that helps
How do you retrieve data from database in PHP?
There are many factors that must be taken into consideration when looking to retrieve data from a database, such as 'what database management system do i posses/supported by my host?' in most cases people looking to retrieve data using php posses SQL database management systems such as MySQL in their control panel which can be used to create, delete and alter databases, along with creating multiuser access to the databases.
once the databases are created and their respected users are added and given their database privileges, one can begin adding and proccessing data to and from a database.
assuming that all the previous has been acheived and there is data in the database, below is a set of php/mysql functions that can process multiple rows of data in a database table.
$link = mysql_connect ("localhost", "USERNAME HERE", "PASSWORD HERE") or die (mysql_error());
$mysql_db = mysql_select_db ("DATABASE NAME") or die (mysql_error());
$db_search = mysql_query("SELECT * FROM `TABLE NAME`");
if (@mysql_num_rows($db_search) > 0) {
while($data = mysql_fetch_array($db_search)) {
}
}
first you connect to your host, then select the database, query a selected table, check for rows of data in the table, place the array of data into a variable, and do what you please with the data now contained within that variable.
for more information go to php.net/mysql
How do you change the input language of a textbox from English to Hindi using PHP?
Changing the input language of a textbox from English to Hindi in PHP involves setting the lang attribute to "hi" in the input tag. This informs the browser that the expected language of the entered text should be Hindi. Additionally, you can utilize JavaScript to provide a virtual Hindi keyboard for users to input text easily in Hindi.
The PHP syntax is similar to which languages?
Its similar to a number of languages such as C, C++, Java and Perl.
Rasmus Lerdorf created PHP (Hypertext Preprocessor) in 1994. Initially, it was a set of Perl scripts, which later evolved into the PHP we know today.
How do you use fopen to read PHP files?
To read PHP files using fopen in PHP, you would first need to open the file using fopen with "r" mode. This opens the file for reading. Remember to check if the file opened successfully, and then you can use functions like fread to read the content of the file. Finally, close the file with fclose when done.
Merits and demerits of inheritance?
Inheritance has many merits, why it was implemented in the first place, it allows the reuse of code for similar classes, and it does an excellence job of organizing class relations. One "demerit" one might argue would be the fact that poorly written parent classes could be easily hacked into, thus gaining access to the parent class's internal methods simply by extending it.
The issues in the parent class would be passed on to the children. If the memory management or Thread management in the parent class is very poor, then the child class would inherit these features and its performance would be affected and would remain bad.
Where can one find PHP documents?
PHP documents are files that contain PHP codes, JavaScript, HTML, etc. which are executed via the server. PHP files that are stored in the computer can be found by typing ".php" in the search (this is the extension of PHP files).
What is zenith in date sunset function in PHP?
Zenith in the date sunset function in PHP refers to the angle of the sun below the horizontal plane during sunset. It is used to calculate the precise time when the sun sets based on the specific angle chosen. A lower zenith value indicates a later sunset time, while a higher zenith value means an earlier sunset time.
Functions are basic blocks of code that work together. Functions can be used from the core PHP or can be created by users.
To create a function, use the following syntax: function function_name(arg1, arg2, ... argX)
{
//Any valid php code here
}
To use a function, use the following syntax:
function_name(arg1, arg2, ... argX);
How are Text processing and the term PHP related?
Text processing is a common task in programming that involves manipulating text data. PHP is a popular programming language commonly used for web development that includes built-in functions and libraries for text processing tasks like string manipulation, parsing, and formatting. PHP provides powerful tools for working with text data, making it a suitable choice for handling text processing tasks in web applications.
You can use libraries like TCPDF or FPDF in PHP to extract text from a PDF file, but reading a PDF line by line directly is not straightforward as PDF files do not have a specific line structure like text files. To create a text file from a PDF, you can use libraries like MPDF or PDFlib in PHP to extract text content and write it to a text file.
I learned php from a tutorial on Tizag.com, It's quite good check it out! the best way to learn php is to to learn he basics (which you can obtain from tizag.com, phpforms.net/tutorial/tutorial.html) and then download some easy php scripts and try to understand it would be very useful if you download something you are interested in maybe an Account creation site for some MMO or something similar. and after all that download the help file from php.net and read it until you understand every word.
My tips: download notepad++ for coding