wphooks.info - install_plugins_pre_{$tab}

install_plugins_pre_{$tab}

The hook occurs in the following file:

wp-admin/plugin-install.php: 
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wp_enqueue_script( 'updates' );

/**
 * Fires before each tab on the Install Plugins screen is loaded.
 *
 * The dynamic portion of the action hook, `$tab`, allows for targeting
 * individual tabs, for instance 'install_plugins_pre_plugin-information'.
 *
 * @since 2.7.0
 */
do_action( "install_plugins_pre_{$tab}" );

/*
 * Call the pre upload action on every non-upload plugin installation screen
 * because the form is always displayed on these screens.
 */
if ( 'upload' !== $tab ) {
	/** This action is documented in wp-admin/plugin-install.php */
	do_action( 'install_plugins_pre_upload' );
}