Merge array items into string - php

Question

How do I merge all the array items into a single string?

Answer 1

Use the implode function.
For example:
$fruits = array('apples', 'pears', 'bananas');
echo implode(',', $fruits);

Answer 2

Try this from the PHP manual (implode):
<?php
$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);
echo $comma_separated; // lastname, email, and phone
// Empty string when using an empty array:
var_dump(implode('hello', array())); // string(0) ""
?>

Answer 3

If you are trying to just concatenate all of strings in the array, then you should look at implode().

Answer 4

$array1 = array(
"one",
"two",
)
$array2 = array(
"three",
"four",
)
$finalarr = array_merge($array1, $array2);
$finalarr = implode(",", $finalarr);
will produce this one,two,three,four

Answer 5

You can use join. It's an alias for implode, and in my opinion more readable:
$fruits = array('apples', 'pears', 'bananas');
echo join(',', $fruits);

Answer 6

join(" -- ", Array("a", "b")) == "a -- b"
actually join is an alias for the implode function.

Answer 7

If you want to merge the string representation of a group of objects into a single string, you can use implode on an array of those objects. The objects' classes just have to have the __toString() magic method defined.
class myClass {
protected $name;
protected $value;
public function __construct($name,$value) {
$this->name = $name;
$this->value = $value;
}
public function __toString() {
return $this->name . '/' . $this->value;
}
}
$obj1 = new myClass('one',1);
$obj2 = new myClass('two',2);
$obj_array = array($obj1, $obj2);
$string_of_all_objects = implode('|',$obj_array);
echo $string_of_all_objects; // 'one/1|two/2'
I found that trick useful to quickly get a string representation of a group of objects for display on a webpage. No need to loop through the object array with foreach and using echo $obj->get('name').
EDIT: And here's and example with a "collection" class. I have 2 outputs (echos) at the end. The 2nd one should work, but I'm not sure about the 1st.
class myCollectionClass implements IteratorAggregate {
protected $objects = array();
public function __construct() {};
public function add(myClass $object) {
$this->objects[] = $object;
return $this; // fluid
}
public function getIterator() { // for the interface
return new ArrayIterator($this->objects);
}
public function __toString() {
return implode($this->objects);
}
}
$my_collection = new myCollectionClass();
$my_collection->add($obj1)->add($obj2); // add both myClass objects to the collection. can do in one line because fluid
//echo implode('|',$my_collection); // Comment out myCollectionClass's __toString method to test this. does it work? I'm not sure. But the next line will work thanks to myCollectionClass' __toString, which itself uses myClass's __toString
echo $my_collection; // same output as previous block before EDIT.

Answer 8

$array= array( "Alfred Hitchcock", "Stanley Kubrick", "Martin Scorsese", "Fritz Lang" );
$string="";
foreach ( $tempas $array) {
$string=$string.",".$temp;
}

Answer 9

foreach($array as $key => $value) {
$string .= $value .' ';
}

Answer 10

For Multi Array such as:
$multi_arrays = array(
0 => array('model' => 'Product 1'),
1 => array('model' => 'Product 2'),
2 => array('model' => 'Product 3'),
3 => array('model' => 'Product 4'));
$pattern = array('/\[/', '/\]/', '/{"model":/', '/}/', '/\"/');
$str_models = preg_replace($pattern, '', json_encode( $multi_arrays));
The result will be:
Product 1, Product 2, Product 3, Product 4
You can change pattern for get any result you want!