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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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386 | * |
387 | * @since 2.6.0 |
388 | * |
389 | * @param string $class CSS class name or space-separated list of classes. |
390 | * @param int $id Attachment ID. |
391 | * @param string $align Part of the class name for aligning the image. |
392 | * @param string|array $size Size of image. Image size or array of width and height values (in that order). |
393 | * Default 'medium'. |
394 | */ |
395 | $class = apply_filters( 'get_image_tag_class', $class, $id, $align, $size ); |
396 |
|
397 | $html = '<img src="' . esc_attr( $img_src ) . '" alt="' . esc_attr( $alt ) . '" ' . $title . $hwstring . 'class="' . $class . '" />'; |
398 |
|
399 | /** |
400 | * Filters the HTML content for the image tag. |
401 | * |
402 | * @since 2.6.0 |
403 | * |
404 | * @param string $html HTML content for the image. |