open or die

PHP supports an error control operator: @. Any error messages that may be generated by the expression are ignored until it is placed in a PHP expression. If a custom error handler is set with Set_error_handler (), it will still be called, but this

Die Function 18.4 handle errors In many cases, system calls may fail. For example, you can try to open a non-existing file, delete a directory that still contains the file, or Try to read files without read permission. In the previous example, we

Online search die and exit two functions, most of the "standard answer" is that die is to exit and release memory, exit is exited but does not release memory. This explanation is clearly wrong, as the PHP manual has said, "Die-equivalent to exit."

Online search die and exit two functions of the difference, most of the "standard answer" is that die is to exit and release memory, exit is exited but does not release memory. This explanation is clearly wrong, as the PHP manual has said,

PHP in the real difference between die () and exit () What is the reason, we Baidu found die is to exit and release memory, Exit is to quit but not to release memory, then really is this, the need for friends can refer to the next Online search for

Often see this statement: $file = fopen ($filename, ' r ') or Die ("Sorry, unable to open: $filename"); Or is understood here, because the data type is not differentiated in PHP, so the $file can be either int or bool, so the statement does not

: This article mainly introduces the differences between die and exit in php. For more information about PHP tutorials, see. First think about a question: What will the following code display to the page? 1 2

First think about a question: What will the following code display to the page? The Code is as follows:   Die (123 ); ?> For a while, I always thought that the page would display 123, but the practice result

Consider a question first: What does the following code show to the page? The code is as follows Die (123);?> There was a time when I thought the page would show 123, but the result told me that the answer

Assignment operation symbol: =,+=,-=,*=,/=,%=,.= comparison operation symbol: >,=, 1. Android Programmer Learning PHP Development (9)-Assignment comparison logical operation-phpstorm Description: Assignment operation symbol: =,+=,-=,*=,/=,%=,.=