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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 |
|---|---|
| 182 | |
| 183 | /** |
| 184 | * Filter an enqueued style's fully-qualified URL. |
| 185 | * |
| 186 | * @since 2.6.0 |
| 187 | * |
| 188 | * @param string $src The source URL of the enqueued style. |
| 189 | * @param string $handle The style's registered handle. |
| 190 | */ |
| 191 | $src = apply_filters( 'style_loader_src', $src, $handle ); |
| 192 | return esc_url( $src ); |
| 193 | } |
| 194 | |
| 195 | function in_default_dir($src) { |
| 196 | if ( ! $this->default_dirs ) |
| 197 | return true; |
| 198 | |
| 199 | foreach ( (array) $this->default_dirs as $test ) { |
| 200 | if ( 0 === strpos($src, $test) ) |