PHP or die

Transcript

1. PHP OR DIE WebφΠτٶ࡚ Vol.12

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3. Α͘ݟΔʁίʔυ

4. ಉ͡ϊϦͰ͜͏͔ͨͬͨ͠ PHP Parse error: syntax error, unexpected 'return'

5. https://stackoverflow.com/questions/14393173/in-php-why-does-or-die-work-but-or-return-doesnt

6. ͭ·Γɺreturn ͸ʮࣜʯͰ͸ͳ͍

7. “ࣜ͸ɺPHP ʹ͓͚Δ࠷΋ॏཁͳϏϧσΟϯάϒ ϩοΫͰ͢ɻPHPʹ͓͍ͯ͸ɺ΄ͱΜͲશͯͷ΋ ͷ͸ࣜͰهड़͞Ε·͢ɻ ࠷΋؆୯Ͱ࠷΋ਖ਼֬ͳ ࣜͷఆٛ͸ɺ"஋͕͋Δ΋ͷશͯ"Ͱ͢ɻ ࣜͱ͸ - PHPϚχϡΞϧ

8. ࣜͷྫ ➤$a = 5 ➤5 ͸ 5 ͱ͍͏஋Λ༗͢Δʮࣜʯ ➤$b =

   $a ➤$a ͸ 5 ͱ͍͏஋Λ࣋ͭʮࣜʯ ➤$c = foo(); ➤foo() ͸ԿΒ͔ͷ஋Λฦ͢ʮࣜʯ

9. ࠷ॳͷྫΛࢥ͍ग़ͯ͠ΈΔ ➤ $fp = false or die(“hoge”); ΤϥʔʹͳΒͳ͍ ➤ $fp

   = false or return 0; PHP Parse error: syntax error, unexpected ‘return' $fp = ࣜ1 or ࣜ2

10. ݁࿦ɿΑͬͯɺ࣍ͷίʔυ͸ΤϥʔʹͳΔ PHP Parse error: syntax error, unexpected 'return'

11. RETURN ➤ ੍ޚߏ଄ͷͻͱͭ

12. ͋Γ͕ͱ͏ ͍͟͝·ͨ͠