How to save images as PNM, PGM or PBM
Converting images to Netpbm formats
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Category "PHP"
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PH7- lighweight PHP interpreter
Interesting alternative to official PHP interpreter
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How to generate waveform from audio file?
Waveform images done the easy way
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Convert Wikipedia article to plaintext
Because we all love Wikipedia
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Currency converter (eg. USD to EUR)
A simple step-by-step guide which will take less than 5 minutes
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