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<?php $message = 'hello! world. Please visit my site: http://hello.world.com.'; $message = preg_replace('/(?<=^|\s)hello\b/', '<a id="get-ahead-link" style="color: #ffa503;" href="https://somelink.com">hello</a>', $message, -1, $count); echo $message;
Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
<a id="get-ahead-link" style="color: #ffa503;" href="https://somelink.com">hello</a>! world. Please visit my site: http://hello.world.com.
preferences:
82.29 ms | 1407 KiB | 4 Q