[RESOLVED] Looping through an Array with foreach

[SquirrelJ]

I am trying out a few things with a foreach loop and I am a little stuck as to why this array doesn’t work. I thought it would output both names and both grades. However it only outputs the second name and second grade.

name is John
Grade is B

<?php
$student = array('name' => 'Simon', 'Grade' => 'A*', 'name' => 'John', 'Grade' => 'B');
foreach ($student as $key => $value)
{
echo "<p>$key is $value</p>";
}
?>

Cheers for the advice

[halojoy]

<?php
$student = array(
'name' => 'Simon', 
'Grade' => 'A*', 
'name' => 'John',  // here you change 'name' to be John ( from Simon)
'Grade' => 'B',);
foreach ($student as $key => $value){
echo "<p>$key is $value</p>";
}
echo '<hr>';
///////////////////////////////////////////////////
// better try this
$students = array(
array('name'=>'Simon', 'grade'=>'A*'), // two separate arrays, sub-arrays
array('name'=>'John',  'grade'=>'B' ),
);

foreach( $students AS $person ){
echo "<p>" .$person['name']. " is Grade " .$person['grade']. "</p>";
}
echo '<hr>';
// you can also do this
foreach( $students AS $subarray ){
    echo "<p>"; 
    foreach( $subarray AS $key=>$val){
        echo $key . " is " . $val . "&nbsp;&nbsp;&nbsp;";
    }
    echo "</p>";
}
?>

[NogDog]

If you do a print_r() or var_dump() of your array, you will see it only has two elements, because you use the same set of keys for both pairs of values, so the second pair overwrite the first pair. You either want to do something like Halojoy's second example, or else make the key the student's name (if it is a unique identifier):

$studentGrades = array(
   'Simon' => 'A*',
   'John' => 'B'
);
foreach $studentGrades as $student => $grade)
{
   echo "<p>$student has a grade of $grade.</p>\n";
}

Or, for more flexibility with the ability to add more data elements per student:

$studentData = array(
   'John' => array(
      'semester_1_grade' => 'A-',
      'semester_2_grade' => 'A+',
      'attendance' => '99%'
   ),
   'Simon' => array(
      'semester_1_grade' => 'B',
      'semester_2_grade' => 'A-',
      'attendance' => '95%'
   )
);
foreach($studentData as $student => $data)
{
   echo "$student had grades of " . $data['semester_1_grade'] .
        " and " . $data['semester_2_grade'] .
        " with an attendance record of " . $data['attendance'] . "</p>\n";
}

[bradgrafelman]

An alternative structure would be:

$studentData = array();

$studentData[] = array('name' => 'John', 'Grade' => 'A*');
$studentData[] = array('name' => 'Simon', 'Grade' => 'B');

[SquirrelJ]

Cheers for the help guys I understand that a lot better now. I am only starting to learn PHP so it was confusing me a lot.

Thank You