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Asked: 2026-05-12T14:31:51+00:00

How can a PHP script detect if a socket has been closed by the

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How can a PHP script detect if a socket has been closed by the remote party?

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  1. Editorial Team

    From socket_read():

    socket_read() returns the data as a string on success, or FALSE on error 
(including if the remote host has closed the connection). The error code can 
be retrieved with socket_last_error(). This code may be passed to 
socket_strerror() to get a textual representation of the error.

    This is the fairly standard approach to detecting if a socket is closed in most languages. I don’t believe PHP offers a direct event-style notification (except perhaps something in PEAR).

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