Php error control operator usage example Summary

Today, I will explain the "error control operator" in the PHP operator ". First, let's take a look at what error control operators do? The error control operator, as its name implies, is used to control error output. this control only shields error information and prevents it from being displayed. it does not actually solve the error. The method is simple, that is, add "@" before the wrong expression. You can use this operator to block unnecessary error messages when using some functions in a program, provided that this error message does not affect the running of the program. If you have some impact on the process... today, I will explain to you the "error control operator" in the PHP operator ". First, let's take a look at what error control operators do? The error control operator, as its name implies, is used to control error output. this control only shields error information and prevents it from being displayed. it does not actually solve the error. The method is simple, that is, add "@" before the wrong expression. You can use this operator to block unnecessary error messages when using some functions in a program, provided that this error message does not affect the running of the program. If errors that affect program operations are not recommended, it is not conducive to eliminating program errors. Note that the "@" error controller cannot be placed before the function or class definition, or used in the condition structure. The "@" control operator is only valid for the expression. Simply put, if a value is obtained from a place, we can put @ in front of it. For example, place @ in front of variables, constants, and function calls. Next, let's take a look at the example of the error control operator. when we open a non-existent file, we use "@" to block it.

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PHP provides an error control operator "@"? What is this?

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