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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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148 |
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149 | /** |
150 | * Filters the inline instructions inserted before the dynamically generated content. |
151 | * |
152 | * @since 5.3.0 |
153 | * |
154 | * @param string[] $instructions Array of lines with inline instructions. |
155 | * @param string $marker The marker being inserted. |
156 | */ |
157 | $instructions = apply_filters( 'insert_with_markers_inline_instructions', $instructions, $marker ); |
158 |
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159 | if ( $switched_locale ) { |
160 | restore_previous_locale(); |
161 | } |
162 |
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163 | $insertion = array_merge( $instructions, $insertion ); |
164 |
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165 | $start_marker = "# BEGIN {$marker}"; |
166 | $end_marker = "# END {$marker}"; |