PHP coding standards (26)_PHP tutorial

9.3.3 Return value

Find ways to structure your program to fit its purpose. For example:
if (booleanExpression) {
return true;
} else {
return false;
}

should be replaced by the following method:
return booleanExpression ;

Similarly:
if (condition) {
　 return x;
}
return y;

should be written as:
return (condition ? x : y);

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