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PHP OR DIE WebφΠτٶ࡚ Vol.12

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ࣗݾ঺հ ➤0HBXB,PTVLFʢ!LPPHBXBʣ ➤Ξϧגࣜձࣾ ➤ٶ࡚͔Β౦ژʹϑϧϦϞʔτ ➤J04 4XJGU "OESPJE ,PUMJO 5ZQF4DSJQU $44 7VFKT /VYUKTͳͲ ➤ݸਓ։ൃͰ1)1ʢ஌ࣝ͸7FSY Ͱࢭ·ͬͯΔʣ

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Α͘ݟΔʁίʔυ

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

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

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ͭ·Γɺreturn ͸ʮࣜʯͰ͸ͳ͍

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

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ࣜͷྫ ➤$a = 5 ➤5 ͸ 5 ͱ͍͏஋Λ༗͢Δʮࣜʯ ➤$b = $a ➤$a ͸ 5 ͱ͍͏஋Λ࣋ͭʮࣜʯ ➤$c = foo(); ➤foo() ͸ԿΒ͔ͷ஋Λฦ͢ʮࣜʯ

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࠷ॳͷྫΛࢥ͍ग़ͯ͠ΈΔ ➤ $fp = false or die(“hoge”); ΤϥʔʹͳΒͳ͍ ➤ $fp = false or return 0; PHP Parse error: syntax error, unexpected ‘return' $fp = ࣜ1 or ࣜ2

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

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RETURN ➤ ੍ޚߏ଄ͷͻͱͭ

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͋Γ͕ͱ͏ ͍͟͝·ͨ͠