student integral0
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From PHP
Why can't I jump to welcome.php?
2018-12-140 answers
Why can't I add a watermark and the picture can't be output? There is only a small box. The same is true for the previous pictures when they are zoomed and cropped?
2018-12-111 answers
Why does bool data appear when directly using the var_dump() function to output data forced by settype()?
2018-12-042 answers
Why does the else output statement appear every time it is opened, that is, "It is not a numeric type or less than 0, please enter the correct score."? Also, why is it shown that the variable name $grades is not defined?
2018-12-041 answers
