Filter hook 'wp_generate_attachment_metadata'

in WP Core File wp-admin/includes/image.php at line 750

View Source

wp_generate_attachment_metadata

Filter Hook
Description
Filters the generated attachment meta data.

Hook Information

File Location wp-admin/includes/image.php View on GitHub
Hook Type Filter
Line Number 750

Hook Parameters

Type Name Description
array $metadata An array of attachment meta data.
int $attachment_id Current attachment ID.
string $context Additional context. Can be 'create' when metadata was initially created for new attachment or 'update' when the metadata was updated.

Usage Examples

Basic Usage
<?php
// Hook into wp_generate_attachment_metadata
add_filter('wp_generate_attachment_metadata', 'my_custom_filter', 10, 3);

function my_custom_filter($metadata, $attachment_id, $context) {
    // Your custom filtering logic here
    return $metadata;
}

Source Code Context

wp-admin/includes/image.php:750 - How this hook is used in WordPress core
<?php
 745  	 * @param array  $metadata      An array of attachment meta data.
 746  	 * @param int    $attachment_id Current attachment ID.
 747  	 * @param string $context       Additional context. Can be 'create' when metadata was initially created for new attachment
 748  	 *                              or 'update' when the metadata was updated.
 749  	 */
 750  	return apply_filters( 'wp_generate_attachment_metadata', $metadata, $attachment_id, 'create' );
 751  }
 752  
 753  /**
 754   * Converts a fraction string to a decimal.
 755   *

PHP Documentation

<?php
/**
	 * Filters the generated attachment meta data.
	 *
	 * @since 2.1.0
	 * @since 5.3.0 The `$context` parameter was added.
	 *
	 * @param array  $metadata      An array of attachment meta data.
	 * @param int    $attachment_id Current attachment ID.
	 * @param string $context       Additional context. Can be 'create' when metadata was initially created for new attachment
	 *                              or 'update' when the metadata was updated.
	 */
Quick Info
  • Hook Type: Filter
  • Parameters: 3
  • File: wp-admin/includes/image.php
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