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| rfc:calltimebyref [2008/05/21 13:29] – sfox | rfc:calltimebyref [2009/02/19 17:44] – Clarification sfox |
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| Before PHP 4.0 was released, ''allow_call_time_pass_reference'' was introduced as a means of retaining back compatibility with PHP 3, at the point where returning by reference from a function declaration became possible [1]. By default, the INI switch has been On since inception [2]. The warning (formerly ''E_COMPILE_WARNING'' but currently ''E_DEPRECATED'') is only thrown if the INI switch is Off. You therefore need to **explicitly** switch off the directive in order to discover that the behaviour is deprecated. | Before PHP 4.0 was released, ''allow_call_time_pass_reference'' was introduced as a means of retaining back compatibility with PHP 3, at the point where returning by reference from a function declaration became possible [1]. By default, the INI switch has been On since inception [2]. The warning (formerly ''E_COMPILE_WARNING'' but currently ''E_DEPRECATED'') is only thrown if the INI switch is Off. You therefore need to **explicitly** switch off the directive in order to discover that the behaviour is deprecated. |
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| At the time ''allow_call_time_pass_reference'' was introduced, php.ini-recommended was interestingly referred to as 'php.ini-optimized'. Over the years, it has become fairly standard to regard php.ini-recommended as 'production settings'; things like ''display_errors=Off'' and ''log_errors=On'' have helped this perception along. For the last 8 years, therefore, the first anyone is likely to have known about their code being less than kosher is when it went live. | At the time ''allow_call_time_pass_reference'' was introduced, php.ini-recommended was interestingly referred to as 'php.ini-optimized'. Over the years, it has become fairly standard to regard php.ini-recommended as 'production settings'; things like ''display_errors=Off'' and ''log_errors=On'' have helped this perception along. From inception, ''allow_call_time_pass_reference'' was switched ''Off'' in php.ini-recommended but ''On'' in php.ini-dist and by default. For the last 8 years, therefore, the first anyone is likely to have known about their code being less than kosher is when it went live. |
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| Even in the current php.ini-recommended, the switch is attributed only to 'Code cleanliness'. The full entry in the heading about changed settings reads: | Even in the current php.ini-recommended, the switch is attributed only to 'Code cleanliness'. The full entry in the heading about changed settings reads: |