For get email id from string. you heve to set reguler expression.
Below is a exmaple for get email from given string in PHP
<?php $string = "My email id is firstname.lastname@example.org and also second email id is email@example.com"; preg_match_all("/[\._a-zA-Z0-9-]+@[\._a-zA-Z0-9-]+/i", $string, $matches); print(implode("<br>", $matches)); ?>
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