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#33886 closed enhancement (duplicate)

Need ability to determine the priority at which an action hook or filter is being run

Reported by:	bobbingwide	Owned by:
Priority:	normal	Milestone:
Component:	Plugins	Version:	4.4
Severity:	normal	Keywords:
Cc:		Focuses:

Description

I have a trace routine which can be invoked for any hook.
It can also be registered to run at multiple priorities.
I'm trying to use it to see what's happening during 'the_content' processing.
It would be nice if the output was able to show the priority of the actual invocation.

Current solution

In this first iteration my trace function calls the following.

/**
 * Find the current priority
 * @return string priority
 */
function bw_trace_inspect_current() {
  global $wp_filter;
  $tag = current_filter();
  $current = current( $wp_filter[ $tag ] );
  bw_trace2( $current, "current", false, BW_TRACE_VERBOSE );
  $priority = $current[ 'bw_trace_results']['accepted_args'];
  $priority = substr( $priority, 2 );
  return( $priority );
}

This super hack relies on the fact that you can define accepted args as a decimal value
So I append the priority to the $accepted_args parameter.
I'm using a base value of 9 , since I want to trace all the passed parameter values.
It seems to be high enough.
Note: I can't guarantee I can find what it should be for the given action hook or filter.

wp-content/plugins/oik-bwtrace/includes/bwtrace-actions.php(338:64) bw_trace_inspect_current(2) 338 2015-09-15T17:53:33+00:00 1.801802 0.001625 cf=genesis_loop,genesis_entry_content,the_content 27 1463 32065360/32341352 F=300 current Array
(
    [capital_P_dangit] => Array
        (
            [function] => capital_P_dangit
            [accepted_args] => 1
        )

    [do_shortcode] => Array
        (
            [function] => do_shortcode_earlier
            [accepted_args] => 1
            [replaced] => do_shortcode
        )

    [bw_trace_results] => Array
        (
            [function] => bw_trace_results
            [accepted_args] => 9.11
        )

)

Aside: As you can see the trace output is also fairly useful.
It tells me that if I wanted to inspect the result between capital_P_dangit and
do_shortcode I'd have to fiddle even more than I've already done with my
bw_replace_filter() function... which has added the [replaced] entry.

Preferred solution

WordPress to provide an API that I can call to return the current hook priority without me having to mess with internal structures.

I don't need the whole stack, just the priority of the end on in $wp_current_filter.

Change History (10)

#1 @bobbingwide
11 years ago

Summary Need ability to determine the priority which an action hook or filter is being run at → Need ability to determine the priority at which an action hook or filter is being run

In this example the priority is 11.

Last edited 11 years ago by bobbingwide (previous) (diff)

#2 follow-up: ↓ 3 @SergeyBiryukov
11 years ago

has_filter( current_filter(), __FUNCTION__ ) returns the priority.

#3 in reply to: ↑ 2 @bobbingwide
11 years ago

Replying to SergeyBiryukov:

has_filter( current_filter(), __FUNCTION__ ) returns the priority.

This returns the priority of the first invocation, not the current one.
My routine can be attached to the same hook with multiple priorities.
e.g. the_content:11,the_content:10

So for priority 10, with verbose tracing I could see the results after these filters have been applied

wp-content/plugins/oik-bwtrace/includes/bwtrace-actions.php(333:64) bw_trace_inspect_current(1) 339 2015-09-25T09:10:13+00:00 1.695575 0.024268 cf=genesis_loop,genesis_entry_content,the_content 27 17898 31566984/32127896 F=293 current Array
(
    [convert_smilies] => Array
        (
            [function] => convert_smilies
            [accepted_args] => 1
        )

    [convert_chars] => Array
        (
            [function] => convert_chars
            [accepted_args] => 1
        )

    [prepend_attachment] => Array
        (
            [function] => prepend_attachment
            [accepted_args] => 1
        )

    [bw_trace_results] => Array
        (
            [function] => bw_trace_results
            [accepted_args] => 9.10
        )

)

#4 @lgedeon
10 years ago

I think this might get what you need.

<?php
function current_filter_priority() {
        global $wp_filter;
        return key( $wp_filter[current_filter()] );
}

#5 @bobbingwide
10 years ago

Resolution → invalid
Status new → closed

@lgedeon Thanks Luke. I'll do a bit more testing and then either mark this as 'wontfix' or convert your snippet into a patch.

#6 @netweb
10 years ago

Milestone Awaiting Review

This ticket was mentioned in Slack in #core by bobbingwide. View the logs.

8 years ago

#8 @bobbingwide
8 years ago

Resolution invalid
Status closed → reopened

This enhancement was delivered as a fix to #39007, which was raised after WP_Hook was delivered in 4.7.0.
Closing as worksforme.

Last edited 8 years ago by bobbingwide (previous) (diff)

#9 @bobbingwide
8 years ago

Resolution → worksforme
Status reopened → closed

#10 @SergeyBiryukov
8 years ago

Resolution worksforme → duplicate

Duplicate of #39007.

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#33886 closed enhancement (duplicate)

Need ability to determine the priority at which an action hook or filter is being run

Description

Current solution

Preferred solution

Change History (10)

#1 @bobbingwide 11 years ago

#2 follow-up: ↓ 3 @SergeyBiryukov 11 years ago

#3 in reply to: ↑ 2 @bobbingwide 11 years ago

#4 @lgedeon 10 years ago

#5 @bobbingwide 10 years ago

#6 @netweb 10 years ago

This ticket was mentioned in ​Slack in #core by bobbingwide. ​View the logs. 8 years ago

#8 @bobbingwide 8 years ago

#9 @bobbingwide 8 years ago

#10 @SergeyBiryukov 8 years ago