The SWF Flash functions allow you to create Macromedia Shockwave Flash movies programmatically with PHP using the libswf library.
The swflib library is available from http://reality.sgi.com/grafica/flash/. Unfortunately, there is no active development on libswf and it is closed-source hence any bugs found are difficult to fix.
One problem users may face is that their web server crashes when attempting to generate a SWF file. This is usually due to problems opening the SWF file for writing or problems opening a font file for inclusion in the SWF file. Font files can be in a "fonts" subdirectory under the location of the scripts generating the SWF content or placed in a directory which can be defined using the SWFFONTPATH environment variable.
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