How to convert php array string to array

How to convert php array string to array: 1. Use the "implode(" ",$arr);" method to split the array into strings in the specified way; 2. Use "explode(" ", $ pizza);" method merges strings into arrays according to specified rules.

#Environment of this article: Windows7 system, PHP7.1, Dell G3 computer.

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PHP String to Array and Array to String

//数组按指定方式分割为字符串
$arr = array('Hello','World!','I','love','Shanghai!');
    
echo implode(" ",$arr);
 
//字符串按指定规则合并为数组
$string = "Hello World love Shanghai";
 
$arr = explode(" ", $pizza);
 
print_r($arr);

implode( ) function returns a string composed of array elements.

explode() function uses one string to split another string and returns an array composed of strings.

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