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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 |
---|---|
4069 | do_action( 'doing_it_wrong_run', $function, $message, $version ); |
4070 |
|
4071 | /** |
4072 | * Filters whether to trigger an error for _doing_it_wrong() calls. |
4073 | * |
4074 | * @since 3.1.0 |
4075 | * |
4076 | * @param bool $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true. |
4077 | */ |
4078 | if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) { |
4079 | if ( function_exists( '__' ) ) { |
4080 | if ( is_null( $version ) ) { |
4081 | $version = ''; |
4082 | } else { |
4083 | /* translators: %s: version number */ |
4084 | $version = sprintf( __( '(This message was added in version %s.)' ), $version ); |
4085 | } |
4086 | /* translators: %s: Codex URL */ |
4087 | $message .= ' ' . sprintf( __( 'Please see <a href="%s">Debugging in WordPress</a> for more information.' ), |