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Annotation of embedaddon/php/ext/spl/tests/iterator_003.phpt, revision 1.1

1.1     ! misho       1: --TEST--
        !             2: SPL: CachingIterator and __toString()
        !             3: --FILE--
        !             4: <?php
        !             5: 
        !             6: class Student
        !             7: {
        !             8:        private $id;
        !             9:        private $name;
        !            10: 
        !            11:     public function __construct($id, $name)
        !            12:     {
        !            13:        $this->id = $id;
        !            14:        $this->name = $name;
        !            15:     }
        !            16: 
        !            17:        public function __toString()
        !            18:        {
        !            19:                return $this->id . ', ' . $this->name;
        !            20:        }
        !            21:        
        !            22:        public function getId()
        !            23:        {
        !            24:                return $this->id;
        !            25:        }
        !            26: }
        !            27: 
        !            28: class StudentIdFilter extends FilterIterator
        !            29: {
        !            30:        private $id;
        !            31: 
        !            32:        public function __construct(ArrayObject $students, Student $other)
        !            33:        {
        !            34:                FilterIterator::__construct($students->getIterator());
        !            35:                $this->id = $other->getId();
        !            36:        }
        !            37:        
        !            38:        public function accept()
        !            39:        {
        !            40:                echo "ACCEPT ".$this->current()->getId()." == ".$this->id."\n";
        !            41:                return $this->current()->getId() == $this->id;
        !            42:        }
        !            43: }
        !            44: 
        !            45: class StudentList implements IteratorAggregate
        !            46: {
        !            47:        private $students;
        !            48:        
        !            49:        public function __construct()
        !            50:        {
        !            51:                $this->students = new ArrayObject(array());
        !            52:        }
        !            53:        
        !            54:        public function add(Student $student)
        !            55:        {
        !            56:                if (!$this->contains($student)) {
        !            57:                        $this->students[] = $student;
        !            58:                }
        !            59:        }
        !            60:        
        !            61:        public function contains(Student $student)
        !            62:        {
        !            63:                foreach ($this->students as $s)
        !            64:                {
        !            65:                        if ($s->getId() == $student->getId()) {
        !            66:                                return true;
        !            67:                        }
        !            68:                }
        !            69:                return false;
        !            70:        }
        !            71:        
        !            72:        public function getIterator() {
        !            73:                return new CachingIterator($this->students->getIterator(), true);
        !            74:        }
        !            75: }
        !            76: 
        !            77: $students = new StudentList();
        !            78: $students->add(new Student('01234123', 'Joe'));
        !            79: $students->add(new Student('00000014', 'Bob'));
        !            80: $students->add(new Student('00000014', 'Foo'));
        !            81: 
        !            82: // The goal is to verify we can access the cached string value even if it was
        !            83: // generated by a call to __toString(). To check this we need to access the
        !            84: // iterator's __toString() method.
        !            85: $it = $students->getIterator();
        !            86: foreach ($it as $student) {
        !            87:        echo $it->__toString(), "\n";
        !            88: }
        !            89: ?>
        !            90: ===DONE===
        !            91: <?php exit(0); ?>
        !            92: --EXPECT--
        !            93: 01234123, Joe
        !            94: 00000014, Bob
        !            95: ===DONE===