What is the use of $_server and $_env?


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Which function is used to strip whitespace?

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List some string function name in php?

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Explain preg_Match and preg_replace?

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What are the differences between GET and POST methods in form submitting?

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hi! i am tushar. i am trying to insert digital signature in a pdf file using PHP. i create a digital signature jpg image using imagecreatefromjpeg() function, but whenever i trying to insert it into my pdf file it shown this error. "FPDF error: Not a JPEG file: signature.jpg". could some one help me? how can i insert a digital signature in a pdf file using PHP?

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Where do I run php code?

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