( ! ) Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in C:\wamp64\www\sogood\securimage\securimage.php on line 2452
Call Stack
#	Time	Memory	Function	Location
1	0.0004	361136	{main}( )	...\securimage_play.php:0
2	0.0023	364432	Securimage->outputAudioFile( $format = NULL )	...\securimage_play.php:70
3	0.0028	379256	Securimage->getAudibleCode( )	...\securimage.php:1623

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Failed to generate audio file, content has already been output.
This is most likely due to misconfiguration or a PHP error was sent to the browser.