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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 |
|---|---|
| 1125 | function image_size_input_fields( $post, $check = '' ) { |
| 1126 | /** |
| 1127 | * Filters the names and labels of the default image sizes. |
| 1128 | * |
| 1129 | * @since 3.3.0 |
| 1130 | * |
| 1131 | * @param array $size_names Array of image sizes and their names. Default values |
| 1132 | * include 'Thumbnail', 'Medium', 'Large', 'Full Size'. |
| 1133 | */ |
| 1134 | $size_names = apply_filters( |
| 1135 | 'image_size_names_choose', |
| 1136 | array( |
| 1137 | 'thumbnail' => __( 'Thumbnail' ), |
| 1138 | 'medium' => __( 'Medium' ), |
| 1139 | 'large' => __( 'Large' ), |
| 1140 | 'full' => __( 'Full Size' ), |
| 1141 | ) |
| 1142 | ); |
| 1143 | |