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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 |
|---|---|
| 5037 | do_action( 'deprecated_argument_run', $function, $message, $version ); |
| 5038 | |
| 5039 | /** |
| 5040 | * Filters whether to trigger an error for deprecated arguments. |
| 5041 | * |
| 5042 | * @since 3.0.0 |
| 5043 | * |
| 5044 | * @param bool $trigger Whether to trigger the error for deprecated arguments. Default true. |
| 5045 | */ |
| 5046 | if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) { |
| 5047 | if ( function_exists( '__' ) ) { |
| 5048 | if ( $message ) { |
| 5049 | trigger_error( |
| 5050 | sprintf( |
| 5051 | /* translators: 1: PHP function name, 2: Version number, 3: Optional message regarding the change. */ |
| 5052 | __( '%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s' ), |
| 5053 | $function, |
| 5054 | $version, |
| 5055 | $message |