What is the difference between Print_r and Var_dump?
var_dump() displays values along with data types as output. print_r() displays only value as output. It does not have any return type. It will return a value that is in string format.
What is the use of VAR dump?
The var_dump() function is used to dump information about a variable. This function displays structured information such as type and value of the given variable. Arrays and objects are explored recursively with values indented to show structure. This function is also effective with expressions.
Why we use $_ POST in PHP?
PHP $_POST is a PHP super global variable which is used to collect form data after submitting an HTML form with method=”post”. $_POST is also widely used to pass variables.
Why Print_r is used in PHP?
The print_r() function is a built-in function in PHP and is used to print or display information stored in a variable. … This parameter is of boolean type whose default value is FALSE and is used to store the output of the print_r() function in a variable rather than printing it.
What is the difference between Print_r and echo?
print_r prints human-readable information about a variable, while echo is used only for strings. Echo just gives the value, print_r gives more information about the variable itself, such as the type of data and the elements in the array, if applicable.
What is PHP dump?
The var_dump() function dumps information about one or more variables. The information holds type and value of the variable(s).
What is explode in PHP?
explode() is a built in function in PHP used to split a string in different strings. The explode() function splits a string based on a string delimiter, i.e. it splits the string wherever the delimiter character occurs. This functions returns an array containing the strings formed by splitting the original string.
What is PHP call function?
A function is a self-contained block of code that performs a specific task. PHP has a huge collection of internal or built-in functions that you can call directly within your PHP scripts to perform a specific task, like gettype() , print_r() , var_dump , etc.