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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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2174 |
|
2175 | /** |
2176 | * Filters a sanitized key string. |
2177 | * |
2178 | * @since 3.0.0 |
2179 | * |
2180 | * @param string $sanitized_key Sanitized key. |
2181 | * @param string $key The key prior to sanitization. |
2182 | */ |
2183 | return apply_filters( 'sanitize_key', $sanitized_key, $key ); |
2184 | } |
2185 |
|
2186 | /** |
2187 | * Sanitizes a string into a slug, which can be used in URLs or HTML attributes. |
2188 | * |
2189 | * By default, converts accent characters to ASCII characters and further |
2190 | * limits the output to alphanumeric characters, underscore (_) and dash (-) |
2191 | * through the {@see 'sanitize_title'} filter. |
2192 | * |