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<?php preg_match_all( '/\[([\w]*?)\:([\w\W\s]*?)\]/' , '[email:optin|<u>Optin</u>]' , $matches); echo $class = "Frontburner_Tag_" . ucfirst( trim( strtolower( $matches[1][0] ) ) ); $values = explode( "|" , $matches[2][0] ); $tag = $this->values[0]; echo $tag;
Output for 7.0.0 - 7.0.20, 7.1.0 - 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Frontburner_Tag_Email Fatal error: Uncaught Error: Using $this when not in object context in /in/32NnT:7 Stack trace: #0 {main} thrown in /in/32NnT on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Frontburner_Tag_Email Fatal error: Using $this when not in object context in /in/32NnT on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Frontburner_Tag_Email Notice: Undefined variable: this in /in/32NnT on line 7

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