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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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247 | * |
248 | * @since Twenty Nineteen 1.4 |
249 | */ |
250 | function wp_body_open() { |
251 | /** |
252 | * Triggered after the opening <body> tag. |
253 | * |
254 | * @since Twenty Nineteen 1.4 |
255 | */ |
256 | do_action( 'wp_body_open' ); |
257 | } |
258 | endif; |
259 |
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