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December 3, 2018 13:31
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Check if image exists and compare file size
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| <?php | |
| stream_context_set_default( ['http' => ['method' => 'HEAD'] ] ); | |
| $head = array_change_key_case( get_headers( $fullremotefilename, 1 ) ); | |
| $content_length = isset($head['content-length']) ? (int)( $head['content-length'] ) : 0; | |
| if ( $content_length ) { | |
| $img_size = @filesize( $localfilename ); | |
| if ( $img_size !== false && $img_size !== $content_length ) { | |
| // images match! | |
| } else { | |
| // images don't match | |
| } | |
| } | |
| // don't forget to reset default stream settings | |
| stream_context_set_default( ['http' => ['method' => 'GET'] ] ); |
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