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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 |
---|---|
3771 | do_action( 'doing_it_wrong_run', $function, $message, $version ); |
3772 |
|
3773 | /** |
3774 | * Filter whether to trigger an error for _doing_it_wrong() calls. |
3775 | * |
3776 | * @since 3.1.0 |
3777 | * |
3778 | * @param bool $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true. |
3779 | */ |
3780 | if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) { |
3781 | if ( function_exists( '__' ) ) { |
3782 | $version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version ); |
3783 | /* translators: %s: Codex URL */ |
3784 | $message .= ' ' . sprintf( __( 'Please see <a href="%s">Debugging in WordPress</a> for more information.' ), |
3785 | __( 'https://codex.wordpress.org/Debugging_in_WordPress' ) |
3786 | ); |
3787 | trigger_error( sprintf( __( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s' ), $function, $message, $version ) ); |
3788 | } else { |
3789 | $version = is_null( $version ) ? '' : sprintf( '(This message was added in version %s.)', $version ); |