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Imagick::valid

(PECL imagick 2, PECL imagick 3)

Imagick::validComprueba si el elemento actual es válido

Descripción

Imagick::valid(): bool

Comprueba si el elemento actual es válido.

Valores devueltos

Devuelve true en caso de éxito.

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User Contributed Notes 1 note

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hyrumt at mediarain dot com
14 years ago
We found this method to be of value when checking most image file types. However, it does not appear to be rigorous enough to detect corrupt jpg files. We use the following for jpgs and validate() for everything else.

<?php
// check for the existence of the EOI segment header at the end of the file
if (0 !== fseek($file, -2, SEEK_END) || "\xFF\xD9" !== fread($file, 2)) {
fclose($file);
return
FALSE;
}
?>
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