php alias 报错,PHP: class_alias

Check is alias:

* @param string $class Class name

* @return bool

*/functionis_alias(string $class):bool{

return$class!== (newReflectionClass($class))->name;

}?>Get class aliases:

* @param string $class Class name

* @param bool $throw Throw exception at error?

* @return string[]|null Aliases or null at error in silent mode

* @throws InvalidArgumentException Class not exists or it's alias

*/functionget_class_aliases(string $class,bool $throw=false): ?array

{/**

* @var array An array of defined classes: keys - classes, values - aliases

*/static$classes= [];// check: class existsif (!class_exists($class,true)) {

if ($throw) {

throw newInvalidArgumentException('Class '.$class.' not exists');

}

returnnull;

}// refresh list$newClasses=array_diff(get_declared_classes(),array_keys($classes));

if ($newClasses) {$abc=range('a','z');

foreach ($newClassesas$newClass) {// fast check first char: class_alias() convert alias to lower caseif (in_array($newClass[0],$abc,true)) {$realClass= (newReflectionClass($newClass))->getName();$classes[$newClass] =$newClass!==$realClass?$realClass:null;

} else {$classes[$newClass] =null;

}

unset($abc,$newClasses);

}// check: is alias?if (! empty($classes[$class])) {

if ($throw) {

throw newInvalidArgumentException($class.' is alias for class '.$classes[$class]);

}

returnnull;

}// find aliasesreturnarray_keys($classes,$class,true);

}?>Usage:

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php alias 报错,PHP: class_alias - Manual

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