Most Referenced Functions
  » google_pagerank()
  » preg_replace()
  » site_pageranks()
  » imagecreatefrompng()
  » htmlentities()
  » imagepng()
  » imagestring()
  » imagedestroy()
  » preg_match()
  » imagecolorallocate()
  » header()
  » fopen()
  » session_start()
  » getimagesize()
  » strpos()
  » strstr()
  » preg_match_all()
  » ob_start()
  » nl2br()
  » array2vars()
  » str_replace()
  » ob_flush()
  » flush()
  » htmlspecialchars()
  » setcookie()
  » urlencode()
  » ereg()
  » preg_split()
  » ereg_replace()
  » var_dump()

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PHP Functions

Function: imagetypes

(PHP 3 CVS only, PHP 4 >= 4.0.2, PHP 5)

imagetypes -- Return the image types supported by this PHP build

Description

int imagetypes ( void )

This function returns a bit-field corresponding to the image formats supported by the version of GD linked into PHP. The following bits are returned, IMG_GIF | IMG_JPG | IMG_PNG | IMG_WBMP | IMG_XPM . To check for PNG support, for example, do this:

Example 1. imagetypes() example 

<?php
if (imagetypes() & IMG_PNG) {
    echo "PNG Support is enabled";
}
?>

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