CascadiaPHP 2024

Imagick::valid

(PECL imagick 2, PECL imagick 3)

Imagick::validVérifie si l'élément courant est valide

Description

public Imagick::valid(): bool

Vérifie si l'élément courant est valide.

Liste de paramètres

Cette fonction ne contient aucun paramètre.

Valeurs de retour

Retourne true en cas de succès.

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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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