What is the difference between exec (), system () and passthru ()?

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What is the difference between exec (), system () and passthru ()?

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#1 by (6 votes)

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What are the differences between these functions? Is there a specific situation to use each function? If it exists, give examples of these situations.

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asked by anonymous 26.05.2017 / 16:22

1 answer

How to add elements from a list and return the result as an integer? The entity or complex type '*' can not be constructed in a LINQ to Entities query

score 6 · Accepted Answer

Nessa response of the OS in English, it says:

exec() - calls a system command, and you even handle the output

system() - executes a system command and shows output immediately (usually text)

passthru() - executes a command from the system, from which you want the "raw" return. Maybe in binary

I suggest you do not use any of them as it generates highly non-portable code.

Documentation

Function system
Function exec
Function passthru