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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 |
|---|---|
| 1883 | $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes |
| 1884 | break; |
| 1885 | |
| 1886 | case 'siteurl': |
| 1887 | case 'home': |
| 1888 | $value = stripslashes($value); |
| 1889 | $value = clean_url($value); |
| 1890 | break; |
| 1891 | default : |
| 1892 | $value = apply_filters("sanitize_option_{$option}", $value, $option); |
| 1893 | break; |
| 1894 | } |
| 1895 | |
| 1896 | return $value; |
| 1897 | } |
| 1898 | |
| 1899 | /** |
| 1900 | * Parses a string into variables to be stored in an array. |
| 1901 | * |