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Imagick::pingImageFile

(PECL imagick 2.0.0)

Imagick::pingImageFile — Get basic image attributes in a lightweight manner

Description

代码语言:javascript
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bool Imagick::pingImageFile ( resource $filehandle [, string $fileName ] )

This method can be used to query image width, height, size, and format without reading the whole image to memory. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

Parameters

filehandle

An open filehandle to the image.

fileName

Optional filename for this image.

Return Values

Returns TRUE on success.

Examples

Example #1 Using Imagick::pingImageFile()

Opening a remote location

代码语言:javascript
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<?php
/*?fopen?a?remote?location?*/
$fp?=?fopen("http://example.com/test.jpg");

/*?create?new?imagick?object?*/
$im?=?new?Imagick();

/*?pass?the?handle?to?imagick?*/
$im->pingImageFile($fp);
?>

See Also

  • Imagick::pingImage() - Fetch basic attributes about the image
  • Imagick::pingImageBlob() - Quickly fetch attributes
  • Imagick::readImage() - Reads image from filename
  • Imagick::readImageBlob() - Reads image from a binary string
  • Imagick::readImageFile() - Reads image from open filehandle

← Imagick::pingImageBlob

Imagick::polaroidImage →

代码语言:txt
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 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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