There are several output forms in php

There are several output forms in php

There are 5 output forms in php, namely echo, print_r, print, var_dump and die.

echo can only output single data such as strings, cannot output data types, and cannot output multiple data such as arrays.

print() can only output single data such as strings. It cannot output data types. It cannot output multiple data such as arrays and has a return value of true/false.

print_r() can output not only single data such as strings, but also multiple data such as arrays, but it cannot output data types.

var_dump() can output not only single data such as strings, but also multiple data such as arrays, as well as data types.

die() has two functions: first output the content, and then exit the program.

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