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<?php if (filter_var($email_b, FILTER_VALIDATE_EMAIL)) { echo "This ($email_b) email address is considered valid."; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $email_b in /in/RSBM3 on line 3
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: email_b in /in/RSBM3 on line 3
Output for 5.2.0 - 5.2.17, 7.3.32 - 7.3.33, 7.4.26
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
<br /> <b>Fatal error</b>: Call to undefined function filter_var() in <b>/in/RSBM3</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: filter_var() in <b>/in/RSBM3</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: filter_var() in <b>/in/RSBM3</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: filter_var() in <b>/in/RSBM3</b> on line <b>3</b><br />

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