PHP array push

In this tutorial we will discuss about the different techniques to add item into an array. 

array_push() is one of the widely used function to add item into an array. General format, parameters it take and type of value it returns is as follows:

array_push(): It treats array as stack, similar to a stack it pushes the variables at last position (Last In First Out). 

Example 1:

$array=array("Apple","Ball","Cat");

echo "<b>Initially the values of array is:</b><br/>";

print_r($array);

array_push($array,"Dog","Elephant");

echo "<br/><b>After pushing some values,the array become:</b><br/>";

print_r($array);

Output:

Initially the values of array is:
Array ( [0] => Apple [1] => Ball [2] => Cat )
After pushing some values,the array become:
Array ( [0] => Apple [1] => Ball [2] => Cat [3] => Dog [4] => Elephant )

Example 2:

$array=array("a"=>"Apple","b"=>"Ball","c"=>"Cat");

echo "<b>Initially the values of array is:</b><br/>";

print_r($array);

array_push($array,"Dog","Elephant");

echo "<br/><b>After pushing some values,the array become:</b><br/>";

print_r($array);

Output:

Initially the values of array is:
Array ( [a] => Apple [b] => Ball [c] => Cat )
After pushing some values,the array become:
Array ( [a] => Apple [b] => Ball [c] => Cat [0] => Dog [1] => Elephant )

Example 3:

$array=array(0=>"Apple",1=>"Ball",2=>"Cat");

echo "<b>Initially the values of array is:</b><br/>";

print_r($array);

array_push($array,"Dog","Elephant");

echo "<br/><b>After pushing some values,the array become:</b><br/>";

print_r($array);

Output:

Initially the values of array is:
Array ( [0] => Apple [1] => Ball [2] => Cat )
After pushing some values,the array become:
Array ( [0] => Apple [1] => Ball [2] => Cat [3] => Dog [4] => Elephant )

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