Ask another regular expression, about the end of the $

Source: Internet
Author: User
Preg_match_all ("/ar$/i", "Batr Bar car ar asdf", $out);p Rint_r ($out);


This code has a $, not a word that should end with R, Btar Bar car ar should all output. Why is there nothing at all.
Doesn't that make sense?


Reply to discussion (solution)

is to detect if the string has an AR end.

Preg_match_all ("/ar\b/i", "Batr Bar car ar asdf", $out);

$ is the end of the line ...

$
The end of the assertion target (or the end of the line in multiline mode, immediately before a newline character)

The word at the end of the 2 floor gives you the answer, and the assertion at the end of the word is \b.

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