php array merge for associative arrays
<?php
$array1 = array('key1' => 'test1', 'key2' => 'test2');
$array2 = array('key3' => 'test3', 'key4' => 'test4');
$resultArray = array_merge($array1, $array2);
// If you have numeric or numeric like keys, array_merge will
// reset the keys to 0 and start numbering from there
$resultArray = $array1 + $array2;
// Using the addition operator will allow you to preserve your keys,
// however any duplicate keys will be ignored.array merge in php
/* Array merge is basically use to merge the two array data. */
<?php
$a1=array("red","green");
$a2=array("blue","green","yellow");
print_r(array_merge($a1,$a2));
?>
/*
Output:
Array ( [0] => red [1] => green [2] => blue [3] => green [4] => yellow )
*/
<?php
$a1=array("a"=>"red","b"=>"green");
$a2=array("c"=>"blue","b"=>"yellow");
print_r(array_merge($a1,$a2));
?>
/*
Output:
Array ( [a] => red [b] => yellow [c] => blue )
*/
/* In above example you can check the difference in output
it takes all values of both array in final output, but not in associative array you can check.
because one value gets overwritten by same key reference in both array.
*/array marge in php
<?php
$a1=array("red","green");
$a2=array("blue","yellow");
print_r(array_merge($a1,$a2));
?>php combine values of two arrays
$all_arrays = array_merge($array1, $array2, $array3, ...);php join array
Definition and Usage
The join() function returns a string from the elements of an array.
The join() function is an alias of the implode() function.
Note: The join() function accept its parameters in either order. However, for consistency with explode(), you should use the documented order of arguments.
Note: The separator parameter of join() is optional. However, it is recommended to always use two parameters for backwards compatibility.
Syntax
join(separator,array)
Example
Join array elements with a string:
<?php
$arr = array('Hello','World!','Beautiful','Day!');
echo join(" ",$arr);
?>
Output:
Hello World! Beautiful Day!Copyright © 2021 Codeinu
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