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Add ID column in admin tables

Display the post id in the admin in its own column for convenience.

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php
<?php
add_action( 'admin_init', function () {
// Get all public post types
	$post_types = get_post_types( array(), 'names' );
	function wpcode_add_post_id_column( $columns ) {
		$columns['wpcode_post_id'] = 'ID'; // 'ID' is the column title
		return $columns;
	}
	function wpcode_show_post_id_column_data( $column, $post_id ) {
		if ( 'wpcode_post_id' === $column ) {
			echo '<code>' . absint( $post_id ) . '</code>';
		}
	}
	foreach ( $post_types as $post_type ) {
		// Add new column to the posts list
		add_filter( "manage_{$post_type}_posts_columns", 'wpcode_add_post_id_column' );
		// Fill the new column with the post ID
		add_action( "manage_{$post_type}_posts_custom_column", 'wpcode_show_post_id_column_data', 10, 2 );
	}
} );

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