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Editorial Team
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Asked: 2026-05-13T07:04:13+00:00

Example: set_error_handler(array($this, ‘handleError’), E_ALL & ~E_STRICT & ~E_WARNING & ~E_NOTICE); what does that suppose

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Example:

set_error_handler(array($this, 'handleError'), E_ALL & ~E_STRICT & ~E_WARNING & ~E_NOTICE);

what does that suppose to mean?

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1 Answer

  1. Editorial Team

    It is the bitwise not operator (also called “complement”). That is the bits set in ~ $a are those that are not set in $a.

    So then

    E_ALL & ~E_STRICT & ~E_WARNING & ~E_NOTICE

    is the bits set in E_ALL and those not set in E_STRICT, E_WARNING and E_NOTICE. This basically says all errors except strict, warning and notice errors.

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