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FLamparski/gist:17ba80f9fa9d51cb62ee

Created December 17, 2015 11:37
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PHP is weird
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gistfile1.txt
>>> function coerc2($optional = null) { printf("Optional is set? %b, Is coercable to true? %b\n", isset($optional), (bool) $optional); }
=> null
>>> coerc2()
Optional is set? 0, Is coercable to true? 0
=> null
>>> coerc2(1)
Optional is set? 1, Is coercable to true? 1
=> null
>>> coerc2(2)
Optional is set? 1, Is coercable to true? 1
=> null
>>> coerc2(null)
Optional is set? 0, Is coercable to true? 0
=> null
>>> coerc2(false)
Optional is set? 1, Is coercable to true? 0
=> null
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