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Description

Processes a script dependency.

Usage

$bool = WP_Scripts::do_item( $handle, $group );

Parameters

$handle

( string ) required – The script's registered handle.

$group

( int|false ) optional – Optional. Group level: level (int), no groups (false). Default false.

Returns

bool True on success, false on failure.

Source

File name: wordpress/wp-includes/class.wp-scripts.php
Lines:

  public function do_item( $handle, $group = false ) {
    if ( ! parent::do_item( $handle ) ) {
      return false;
    }

    if ( 0 === $group && $this->groups[ $handle ] > 0 ) {
      $this->in_footer[] = $handle;
      return false;
    }

    if ( false === $group && in_array( $handle, $this->in_footer, true ) ) {
      $this->in_footer = array_diff( $this->in_footer, (array) $handle );
    }

    $obj = $this->registered[ $handle ];

    if ( null === $obj->ver ) {
      $ver = '';
    } else {
      $ver = $obj->ver ? $obj->ver : $this->default_version;
    }

    if ( isset( $this->args[ $handle ] ) ) {
      $ver = $ver ? $ver . '&' . $this->args[ $handle ] : $this->args[ $handle ];
    }

    $src         = $obj->src;
    $cond_before = '';
    $cond_after  = '';
    $conditional = isset( $obj->extra['conditional'] ) ? $obj->extra['conditional'] : '';

    if ( $conditional ) {
      $cond_before = "<!--[if {$conditional}]>\n";
      $cond_after  = "<![endif]-->\n";
    }

    $before_handle = $this->WP_Scripts::print_inline_script( $handle, 'before', false );
    $after_handle  = $this->WP_Scripts::print_inline_script( $handle, 'after', false );

    if ( $before_handle ) {
      $before_handle = sprintf( "<script%s id='%s-js-before'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $before_handle );
    }

    if ( $after_handle ) {
      $after_handle = sprintf( "<script%s id='%s-js-after'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $after_handle );
    }

    if ( $before_handle || $after_handle ) {
      $inline_script_tag = $cond_before . $before_handle . $after_handle . $cond_after;
    } else {
      $inline_script_tag = '';
    }

    $translations = $this->WP_Scripts::print_translations( $handle, false );
    if ( $translations ) {
      $translations = sprintf( "<script%s id='%s-js-translations'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $translations );
    }

    if ( $this->do_concat ) {
      
/**
 * Filters the script loader source.
 *
 * @since 2.2.0
 *
 * @param string $src    Script loader source path.
 * @param string $handle Script handle.
 */
      $srce = apply_filters( 'script_loader_src', $src, $handle );

      if ( $this->WP_Scripts::in_default_dir( $srce ) && ( $before_handle || $after_handle || $translations ) ) {
        $this->do_concat = false;

        // Have to print the so-far concatenated scripts right away to maintain the right order.
        _print_scripts();
        $this->WP_Scripts::reset();
      } elseif ( $this->WP_Scripts::in_default_dir( $srce ) && ! $conditional ) {
        $this->print_code     .= $this->WP_Scripts::print_extra_script( $handle, false );
        $this->concat         .= "$handle,";
        $this->concat_version .= "$handle$ver";
        return true;
      } else {
        $this->ext_handles .= "$handle,";
        $this->ext_version .= "$handle$ver";
      }
    }

    $has_conditional_data = $conditional && $this->get_data( $handle, 'data' );

    if ( $has_conditional_data ) {
      echo $cond_before;
    }

    $this->WP_Scripts::print_extra_script( $handle );

    if ( $has_conditional_data ) {
      echo $cond_after;
    }

    // A single item may alias a set of items, by having dependencies, but no source.
    if ( ! $src ) {
 

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