How to cast array elements to strings in PHP?

user_156481 0
Viewed 95999

If I have a array with objects:

$a = array($objA, $objB);

(each object has a __toString()-method)

How can I cast all array elements to string so that array $a contains no more objects but their string representation? Is there a one-liner or do I have to manually loop through the array?

casting arrays php string
7 Answers

A one-liner:

$a = array_map('strval', $a);
// strval is a callback function

See PHP DOCS:

array_map

strval

user_897710

Not tested, but something like this should do it?

foreach($a as $key => $value) {
    $new_arr[$key]=$value->__toString();
}
$a=$new_arr;
user_801110

Are you looking for implode?

$array = array('lastname', 'email', 'phone');

$comma_separated = implode(",", $array);

echo $comma_separated; // lastname,email,phone
user_2134640

I can't test it right now, but can you check what happens when you implode() such an array? The _toString should be invoked.

user_1876060 
$str1 = "pankaj";
$str2 = array("sam",'pankaj',"hello");
function Search($x ,$y){
    $search = $x;
    $arr = $y;
 foreach($y as $key => $value){
    $str = array_search($x, $y);
    if($str == $key){
    echo $key ."=>".$value;
    echo "<br>".gettype($value);
  }
 }
}
Search($str1 ,$str2);
user_199690950

Is there any reason why you can't do the following?

$a = array(
    (string) $objA,
    (string) $objB,
);
user_1022050
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