Append to end of associative array in PHP - php

Question

I have an array which is defined as $array[colname]. For each value in $array[colname], I would like to append a piece of text to the end. The value already inside is string and I will append a string as well.

Answer 1

There are at least two possibilities
Edit the array in place:
foreach($a as &$v) {
$v .= 'APPENDED';
}
or
foreach($a as $k => $v) {
$a[$k] = $v . 'APPENDED';
}
Create a new array by mapping the old values to their new values:
$appended_array = array_map(function($v) { return $v . 'APPENDED'; }, $a);

Answer 2

Like this? You can easily iterate throug arrays
Here are the docs: http://php.net/manual/en/control-structures.foreach.php
Tip: Next time you should search on google and php.net because most default stuff are documented and in your question you used the right keywords that you needed to find it yourself
<?php
//Could write this shorter
$array = array();
$array['column1'] = 'value1';
$array['column2'] = 'value2';
//This is the short way
//http://php.net/manual/en/language.types.array.php
$array = array('column1' => 'value1', 'column2' => 'value2');
//Iterate throug every value in $array (That is every $array[colname])
//The & charachter before the $value means pass-by-reference you should do some research to understand this ;)
//foreach($array['colname'] as &$value) { for a single column with multiple values in it
foreach($array as &$value) {
// .= is the same as $value = $value . 'append'
// This way we append the text
$value .= 'append';
}
//Outputs all values in $array
print_r($array());
?>

Answer 3

You can use array_walk like below:
<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
function test_alter(&$item1, $key, $string)
{
$item1 = "$item1 : $string";
}
array_walk($fruits, 'test_alter', 'fruit');
echo "... and after:\n";
array_walk($fruits, 'test_print');
?>
Output will be like this:
... and after:
d. lemon:fruit
a. orange:fruit
b. banana:fruit
c. apple:fruit
for more info:http://php.net/manual/en/function.array-walk.php

Answer 4

Here's the tested solution provided array matches to your stucture
<?php
$array = array();
$array['c1'] = array(1=>'data1', 2=>'data2', 3=>'data3', 4=>'data4');
$array['c2'] = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
echo '<pre> Original Array : <br/>';
print_r($array);
foreach($array as $key=>$value)
{
foreach($value as $sub_key=>$sub_value)
{
$textToAppend = '_AppendedMe';
echo '<br/> brfore : '.$value[$sub_key];
$sub_value .= $textToAppend;
$array[$key][$sub_key]=$sub_value;
echo '<br/> after : '.$value[$sub_key];
}
}
echo '<br/> Array after : ';
print_r($array);
echo '</pre>';
?>