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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 |
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2270 | } |
2271 |
|
2272 | /** |
2273 | * Filters a user's display name before the user is created or updated. |
2274 | * |
2275 | * @since 2.0.3 |
2276 | * |
2277 | * @param string $display_name The user's display name. |
2278 | */ |
2279 | $display_name = apply_filters( 'pre_user_display_name', $display_name ); |
2280 |
|
2281 | $description = empty( $userdata['description'] ) ? '' : $userdata['description']; |
2282 |
|
2283 | /** |
2284 | * Filters a user's description before the user is created or updated. |
2285 | * |
2286 | * @since 2.0.3 |
2287 | * |
2288 | * @param string $description The user's description. |