What is the specific error message "pdf_open_file() expects exactly 2 parameters, 1 given" indicating in PHP when trying to generate a PDF?

The error message "pdf_open_file() expects exactly 2 parameters, 1 given" indicates that the function pdf_open_file() requires two parameters to be passed to it, but only one was provided. To solve this issue, you need to provide the required second parameter, which is the name of the PDF file you want to open. 

// Incorrect usage of pdf_open_file()
$pdf = pdf_new();
pdf_open_file($pdf); // Missing the second parameter

// Corrected code
$pdf = pdf_new();
pdf_open_file($pdf, "example.pdf"); // Provide the filename as the second parameter

Keywords

pdf_open_file parameters PHP error message PDF generation

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