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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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154 |
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155 | /** |
156 | * Filters the inline instructions inserted before the dynamically generated content. |
157 | * |
158 | * @since 5.3.0 |
159 | * |
160 | * @param string[] $instructions Array of lines with inline instructions. |
161 | * @param string $marker The marker being inserted. |
162 | */ |
163 | $instructions = apply_filters( 'insert_with_markers_inline_instructions', $instructions, $marker ); |
164 |
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165 | if ( $switched_locale ) { |
166 | restore_previous_locale(); |
167 | } |
168 |
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169 | $insertion = array_merge( $instructions, $insertion ); |
170 |
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171 | $start_marker = "# BEGIN {$marker}"; |
172 | $end_marker = "# END {$marker}"; |