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|
--TEST--
SPL: CachingIterator and __toString()
--SKIPIF--
<?php if (!extension_loaded("spl")) print "skip"; ?>
--FILE--
<?php
class Student
{
private $id;
private $name;
public function __construct($id, $name)
{
$this->id = $id;
$this->name = $name;
}
public function __toString()
{
return $this->id . ', ' . $this->name;
}
public function getId()
{
return $this->id;
}
}
class StudentIdFilter extends FilterIterator
{
private $id;
public function __construct(ArrayObject $students, Student $other)
{
FilterIterator::__construct($students->getIterator());
$this->id = $other->getId();
}
public function accept()
{
echo "ACCEPT ".$this->current()->getId()." == ".$this->id."\n";
return $this->current()->getId() == $this->id;
}
}
class StudentList implements IteratorAggregate
{
private $students;
public function __construct()
{
$this->students = new ArrayObject(array());
}
public function add(Student $student)
{
if (!$this->contains($student)) {
$this->students[] = $student;
}
}
public function contains(Student $student)
{
foreach ($this->students as $s)
{
if ($s->getId() == $student->getId()) {
return true;
}
}
return false;
}
public function getIterator() {
return new CachingIterator($this->students->getIterator(), true);
}
}
$students = new StudentList();
$students->add(new Student('01234123', 'Joe'));
$students->add(new Student('00000014', 'Bob'));
$students->add(new Student('00000014', 'Foo'));
// The goal is to verify we can access the cached string value even if it was
// generated by a call to __toString(). To check this we need to access the
// iterator's __toString() method.
$it = $students->getIterator();
foreach ($it as $student) {
echo $it->__toString(), "\n";
}
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
01234123, Joe
00000014, Bob
===DONE===
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