Use of ‘return’ statement is not recommended
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Do not compare to null
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phpinfo() should not be used in production
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The code contains too many PHP4 deprecated constructor naming.
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The code contains too many final artifacts in final classes
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The code contains too many classes that declare __get() without declaring __set()
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Force casts should not be used
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Avoid abstract classes without abstract or concrete methods
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Variables should be declared with ‘let’ or ‘const’
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Multiline string literals should not be used
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