'php' is not recognized as an internal or external command, operable program or batch file.

Question

why program run and then without output error jounerat

Answer 1

Without much knowledge of web development, somewhere the string “PHP” is getting passed as a command to the Windows command line, and it’s not a valid command. Someone with more knowledge of web dev might be able to guess how this happened, but you really should give more details than just the error message. You need to include what code got you there.

Answer 2

Are you trying to open a php file with something which can't open .php?
https://www.sololearn.com/discuss/872538/?ref=app
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https://www.sololearn.com/discuss/1385897/?ref=app