1: |
Which construct can you use to define an array?
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2: |
What is the index number of the last element of the array defined here?
$users = array ("Harry", "Bob", "Sandy");
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3: |
Without using a function, what would be the easiest way of adding the element "Susan" to the $users array defined previously?
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4: |
Which function could you use to add the string "Susan" to the $users array?
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5: |
How would you find out the number of elements in an array?
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6: |
How would you loop through an array?
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7: |
Which function would you use to merge two arrays?
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8: |
How would you sort an associative array by its keys?
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A1:
| You can create an array with the array() construct. |
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A2:
| The last element is $users[2]. Remember that arrays are indexed from zero by default. |
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A3:
| You should use $users[] = "Susan";. |
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A4:
| You should use array_push( $users, "Susan" );. |
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A5:
| You can count the number of elements in an array with the count() function. |
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A6:
| You can loop through an array using the foreach statement. |
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A7:
| You can merge arrays with the array_merge() function. |
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A8:
| You can sort an associative array by its keys with the ksort() function. |