Both print and echo are language constructs for displaying strings. echo has a void return type while print has a return value of 1 so it can be used in expressions. print_r is used to display human-readable information about a variable.
What is the main difference between ECHO and Var_dump in PHP?
It is a built-in function used in PHP to print or display information stored in a variable. Basically it prints human readable information about a variable. If the variable is a string, integer, or float, the value itself is returned.
What does print_r do in PHP?
echo returns the content to the console or web browser. Example: echo Hey, this is now displayed on your screen! return returns a value at the end of a function or method.
What is the difference between ECHO and Return in PHP?
The var_dump function displays structured information about variables/expressions, including type and value. … print_r() displays information about a variable in a human-readable way. The array values are presented in a format that shows keys and elements. A similar notation is used for objects.
What is the difference between var_dump and echo?
The difference between echo, print, print_r and var_dump is very simple. echo is not actually a function but a language construct used to print output. It’s slightly faster than printing. Like the echo construct, print is a language construct, not an actual function. seven
What is the difference between var_dump and print_r?
The var_dump() function displays structured information about variables/expressions, including type and value. While print_r() displays information about a variable in a human-readable way. 9
What is the difference between echo print and print_r in PHP?
The difference is that print_r recursively prints an array (or an object, but it doesn’t look that pretty) and displays all the keys and values. echo and is intended for scalar values. print_r prints out human-readable information about a variable, while echo is only used for strings. 4
What does var_dump mean in PHP?
The var_dump() function is used to dump information about a variable. This function displays structured information such as the type and value of the specified variable. Arrays and objects are examined recursively with values indented to show structure. seven
What is the difference between ECHO and DIE in PHP?
No, there is no difference, both write exit to STDOUT and end the program. I would prefer the die(exit) method because it’s less typed, easier to annotate, and more semantically clear. 29
What does the PHP echo return?
echo and print are more or less the same. They are both used to display data on screen. The differences are minimal: echo has no return value, while print has a return value of 1, so it can be used in expressions.
What is the difference between ECHO and Print_r in PHP?
The difference is that print_r recursively prints an array (or an object, but it doesn’t look that pretty) and displays all the keys and values. echo and is intended for scalar values. print_r prints out human-readable information about a variable, while echo is only used for strings. 4
What is Return for in PHP?
return ¶ return returns control of the program to the calling module. Execution continues at the expression following the invocation of the invoked modules. When called from a function, the return statement immediately terminates execution of the current function and returns its argument as the value of the function call.