Using WordPress ‘build_comment_query_vars_from_block()’ PHP function

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The build_comment_query_vars_from_block() WordPress PHP function is a helper function. It constructs a comment query vars array from the passed block properties. It’s typically used with the Comment Query Loop inner blocks.

Usage

$comment_query_vars = build_comment_query_vars_from_block($block);

In this example, $block is the instance of your block, and the function returns a query vars array for comments related to that block.

Parameters

  • $block (WP_Block): This is a required parameter. It is the instance of the block you’re working with.

More information

See WordPress Developer Resources: build_comment_query_vars_from_block()

Examples

Basic Use

This example shows how to use this function to get the comment query vars for a block.

$block = new WP_Block( $attributes );
$comment_query_vars = build_comment_query_vars_from_block($block);

Here, we are creating a new WP_Block object with $attributes and then passing it to build_comment_query_vars_from_block() to get the comment query vars for this block.

Loop Through Comment Query Vars

This example demonstrates how to loop through the comment query vars for a block and print them.

$block = new WP_Block( $attributes );
$comment_query_vars = build_comment_query_vars_from_block($block);

foreach($comment_query_vars as $key => $value) {
    echo 'Key: ' . $key . ', Value: ' . $value . '<br>';
}

Here, we create a new WP_Block object, get the comment query vars, and loop through them to print the key-value pairs.

Use with get_comments()

This example shows how you can use the comment query vars from a block with the get_comments() function.

$block = new WP_Block( $attributes );
$comment_query_vars = build_comment_query_vars_from_block($block);

$comments = get_comments($comment_query_vars);

In this example, we get the comment query vars for a block and pass them to get_comments() to get an array of comments for the block.

Modify Comment Query Vars

This example demonstrates how to modify the comment query vars returned from a block.

$block = new WP_Block( $attributes );
$comment_query_vars = build_comment_query_vars_from_block($block);

$comment_query_vars['status'] = 'approve';

Here, we get the comment query vars for a block and then modify the ‘status’ var to ‘approve’.

Error Handling

This example shows how to handle errors when trying to get the comment query vars from a block.

try {
    $block = new WP_Block( $attributes );
    $comment_query_vars = build_comment_query_vars_from_block($block);
} catch (Exception $e) {
    echo 'Caught exception: ',  $e->getMessage(), "\n";
}

In this example, we use a try-catch block to handle any exceptions that might occur when trying to get the comment query vars from a block.