What is the use of $_server and $_env?
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Which function is used to strip whitespace?
List some string function name in php?
How to check curl is enabled or not in PHP
How to execute an sql query? How to fetch its result?
How are php sessions stored?
Is facebook still written in php?
Explain preg_Match and preg_replace?
What are the differences between GET and POST methods in form submitting?
What are escaping characters?
What are encryption functions in php?
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?
Where do I run php code?