How to abbreviate the ternary operator in php

Today I discovered a small usage of PHPternary operationoperator. This gives my dry brain a little fun!

PHP TernaryOperatoris a concise main usage when assigning parameters. A main usage: PHP ternary operator allows you to describe the judgment code in one line of code, thereby replacing something like The following code:

        

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Use the following code instead:

        

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The second code example is a very concise usage, which is very practical in many situations (not all) Usage. There is a lot of debate about whether you should use the ternary operator; let me say, it is a tool, just like any other tool, it is just used correctly or not.

The commonly used syntax is (expression)? value if truthy: value if falsy. Thisexpressioncan be avariable, test whether this variable is true or false:

        

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The problem is: The above example is very It’s commonly used but also a bit annoying to repeat: writing $value twice feels like a mistake.

Fortunately, today I found a more concise usage introduced inPHP 5.3The syntax of the ternary operator. You can learn it from the manual, but here we can make the above example more concise:

        

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This one looks familiar, because it is very similar to other shorthand operators ; When concise code, this way will look clearer, we

write like this,

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