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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 |
|---|---|
| 748 | |
| 749 | // If strict, reduce to ASCII for max portability. |
| 750 | if ( $strict ) |
| 751 | $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username ); |
| 752 | |
| 753 | $username = trim( $username ); |
| 754 | // Consolidate contiguous whitespace |
| 755 | $username = preg_replace( '|\s+|', ' ', $username ); |
| 756 | |
| 757 | return apply_filters( 'sanitize_user', $username, $raw_username, $strict ); |
| 758 | } |
| 759 | |
| 760 | /** |
| 761 | * Sanitize a string key. |
| 762 | * |
| 763 | * Keys are used as internal identifiers. Lowercase alphanumeric characters, dashes and underscores are allowed. |
| 764 | * |
| 765 | * @since 3.0.0 |
| 766 | * |