Contents

<?php

class School
{
    private $database = array() ;

    public function numberOfStudents()
    {
        return (count($this->database, COUNT_RECURSIVE) - count($this->database)) ;
    }

    public function add($student, $grade)
    {
        $this->database[$grade][] = $student ;
    }

    public function grade($grade)
    {
        return (array_key_exists($grade, $this->database) ? $this->database[$grade] : array()) ;
    }

    public function studentsByGradeAlphabetical()
    {
        $tmp = $this->database ;
        ksort($tmp) ;

        foreach ($tmp as $grade => $students) {
            asort($students) ;
            foreach ($students as $student) {
                $res [ $grade ][] = $student ;
            }
        }
        return $res ;
    }
}

Version data entries

276 entries across 276 versions & 1 rubygems

Version	Path
trackler-2.2.1.98	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.97	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.96	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.95	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.94	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.93	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.92	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.91	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.90	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.89	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.88	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.87	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.86	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.85	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.84	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.83	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.82	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.81	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.80	tracks/php/exercises/grade-school/example.php
trackler-2.2.1.79	tracks/php/exercises/grade-school/example.php