Text at any cost: PPT. Take the second
I recently announced my version of reading PowerPoint presentations using pure PHP. Then I noted with regret that the class is crude and needs to be improved. How long, how short, but errors were found - now the files are read much better, without any dirt. I hope you will benefit from my work.
The error (the main one), as it was supposed to have been in the wrong reading of
I used to read absolutely wrong, surprisingly, it somehow worked. Due to the fact that the error is serious and, possibly, there are people who can use my classes, I am writing a topic a second time.
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You can get the code with comments on GitHub .
The error (the main one), as it was supposed to have been in the wrong reading of
PersistDirectory . Either my English fails me, or Microsoft writes its documents too intricately, but I didn’t realize how to read the structure by OffsetPersistDirectory offset right away. It turns out the structure consists of triples: PersistId - ID of the first entry in the directory, cPersist - the number of entries that need to be read after this value. And then n = cPersist four-byte n = cPersist values — offsets to the entries in PersistDirectory .I used to read absolutely wrong, surprisingly, it somehow worked. Due to the fact that the error is serious and, possibly, there are people who can use my classes, I am writing a topic a second time.
')
You can get the code with comments on GitHub .
Text at any cost
Source: https://habr.com/ru/post/76731/
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