What are the differences between php echo, print, print_r and var_dum?

php The differences between echo, print, print_r, and var_dum are: 1. echo and print are language structures, while print_r and var_dump are ordinary functions; 2. echo is used to output one or more strings; 3. Print is used to output strings and so on.

The difference between echo, print, print_r and var_dump

echo and print are language structures, print_r and var_dump is a normal function

• echo: output one or more strings

• print: output string

• print_r: Print easy-to-understand information about variables

• var_dump: Print easy-to-understand information about variables (with type)

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