Phppowerpoint 在获取文本

Question

PhpPowerpoint 是否有能力从现有的 pptx 中获取文本？ 因为我想从现有的 pptx 获取文本到 php。有没有可能实现？

Answer 1

是的。

PhpPresentation，旧称 PHPPowerPoint，有一些读者：PowerPoint2007、PowerPoint97 和 OPresentation。这些阅读器允许提取具有内容和格式的形状。

Answer 2

这里是过程，甚至可以处理 unicode 字符。 它将 CRLF 中 pptx 文本中的 LF 转换为读取。 完成后（另存为 AllUniB）用 Word 打开它，转换 Unicode，清理多个段落（将 ^l 替换为 ^p，然后将 ^p^p 替换为 ^p） 就可以出发了。

将此代码添加到 pptx 宏并运行它：

Sub ExportTextUnicodeBin()
  Dim oPres As Presentation
  Dim oSlides As Slides
  Dim oSld As Slide         'Slide Object
  Dim oShp As Shape         'Shape Object
  Dim iFile As Integer      'File handle for output
  iFile = FreeFile          'Get a free file number
   Dim adoStream As ADODB.Stream

  Dim PathSep As String
  Dim FileNum As Integer
  Dim sTempString As String
Dim bytes() As Byte

  #If Mac Then
    PathSep = ":"
  #Else
    PathSep = "\"
  #End If

  Set adoStream = New ADODB.Stream
  Set oPres = ActivePresentation
  Set oSlides = oPres.Slides

  FileNum = FreeFile

  'Open output file
  ' NOTE:  errors here if file hasn't been saved
'  Open oPres.Path & PathSep & "AllText.TXT" For Output As FileNum
    adoStream.Charset = "Unicode" 'or any string listed in registry HKEY_CLASSES_ROOT\MIME\Database\Charset

    'open sream
    adoStream.Open
    adoStream.Type = adTypeBinary

  For Each oSld In oSlides    'Loop thru each slide
    ' Include the slide number (the number that will appear in slide's
    ' page number placeholder; you could also use SlideIndex
    ' for the ordinal number of the slide in the file
bytes = StrConv("Slide:" & vbTab & CStr(oSld.SlideNumber) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes

    'Print #iFile, "Slide:" & vbTab & CStr(oSld.SlideNumber)

    For Each oShp In oSld.Shapes                'Loop thru each shape on slide
      'Check to see if shape has a text frame and text
      If oShp.HasTextFrame And oShp.TextFrame.HasText Then
        If oShp.Type = msoPlaceholder Then
            Select Case oShp.PlaceholderFormat.Type
                Case Is = ppPlaceholderTitle, ppPlaceholderCenterTitle
bytes = StrConv("Title:" & vbTab & Strings.Replace(oShp.TextFrame.TextRange, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
                Case Is = ppPlaceholderBody
bytes = StrConv("Body:" & vbTab & Strings.Replace(oShp.TextFrame.TextRange, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
                Case Is = ppPlaceholderSubtitle
bytes = StrConv("SubTitle:" & vbTab & Strings.Replace(oShp.TextFrame.TextRange, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
                Case Else
bytes = StrConv("Other Placeholder:" & vbTab & Strings.Replace(oShp.TextFrame.TextRange, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
            End Select
        Else

bytes = StrConv("NoS:" & vbTab & Strings.Replace(oShp.TextFrame.TextRange, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
        End If  ' msoPlaceholder
      Else  ' it doesn't have a textframe - it might be a group that contains text so:
        If oShp.Type = msoGroup Then
            sTempString = TextFromGroupShape(oShp)
            If Len(sTempString) > 0 Then
bytes = StrConv("Group: " & vbTab & Strings.Replace(sTempString, vbCr, vbCrLf) & vbCrLf, vbFromUnicode)
   adoStream.Write bytes
            End If
        End If
      End If    ' Has text frame/Has text

    Next oShp
  Next oSld

  'Close output file
  'Close #iFile
    adoStream.SaveToFile oPres.Path & PathSep & "AllUniB.TXT"

    adoStream.Close

End Sub


Function TextFromGroupShape(oSh As Shape) As String
' Returns the text from the shapes in a group
' and recursively, text within shapes within groups within groups etc.

    Dim oGpSh As Shape
    Dim sTempText As String

    If oSh.Type = msoGroup Then
        For Each oGpSh In oSh.GroupItems
            With oGpSh
                If .Type = msoGroup Then
                    sTempText = sTempText & TextFromGroupShape(oGpSh)
                Else
                    If .HasTextFrame Then
                        If .TextFrame.HasText Then
                            sTempText = sTempText & "(Gp:) " & .TextFrame.TextRange.Text & vbCrLf
                        End If
                    End If
                End If
            End With
        Next
    End If

    TextFromGroupShape = sTempText

NormalExit:
    Exit Function

Errorhandler:
    Resume Next

End Function

请记住将 ADODB 库添加到 VBA 中的资源中，否则运行时会出错