COMPUTER LANGUAGES | PHP | PHP INTERVIEW QUESTION AND ANSWERS - 10

PHP Interview Question and Answers:

41.     What do you mean range()?
      Starting from a low value and going to a high value, the range() function creates an array of consecutive integer or character values. It takes up to three arguments: a starting value, an ending value, and an increment value. If only two arguments are given, the increment value defaults to 1.
Example :
<?php
echo range(1,10); // Returns 1,2,3,4,5,6,7,8,9,10
?>

42.     Explain Creating and Naming an Array.
     
      Function                           Descriptions
1.     array()                                   Creates an array
2.     array_combine()                    Creates an array by using one array for keys and another for its values
3.     array_fill()                             Fills an array with values
4.     array_pad()                           Pads an array to the specified length with a value
5.     compact()                             Creates array containing variables and their values
6.     range()                                  Creates an array containing a range of elements

43.     How to read and display a HTML source from the website url?
      <?php
$filename="http://www.kaptivate.in/";
$fh=fopen("$filename", "r");
while( !feof($fh) ){
$contents=htmlspecialchars(fgets($fh, 1024));
print "<pre>$contents</pre>";
}
fclose($fh);
?>

44.     How to display your correct URL of the current web page?
      <?php
echo $_SERVER['PHP_SELF'];
?>

45.     Explain $_FILES Superglobal Array.
     
Array                                                   Descriptions
$_FILES['userfile']['name']              The original name of the file on the client machine.
$_FILES['userfile']['type']                The MIME type of the file, if the browser provided this information. An example would be "image/gif".
$_FILES['userfile']['size']                  The size, in bytes, of the uploaded file.
$_FILES['userfile']['tmp_name']        The temporary filename of the file in which the uploaded file was stored on the server.
$_FILES['userfile']['error']                 The error code associated with this file upload.