rfc:convert_numeric_keys_in_object_array_casts

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rfc:convert_numeric_keys_in_object_array_casts [2016/11/14 17:43] – mention langspec ajfrfc:convert_numeric_keys_in_object_array_casts [2016/11/14 18:04] – correct regex ajf
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 The PHP language has two core data types which are collections of key/value pairs. The PHP language has two core data types which are collections of key/value pairs.
  
-The first of these, the //array//, is an ordered map of integer or string keys to arbitrary values. There is no overlap between integer and string keys in arrays; if a string fits the format ''/^0|([1-9][0-9]*)$/'' and is small enough (<php>PHP_INT_MIN</php> ≤ n ≤ <php>PHP_INT_MAX</php>), it is converted to an integer key. Such strings are termed //numeric strings//.+The first of these, the //array//, is an ordered map of integer or string keys to arbitrary values. There is no overlap between integer and string keys in arrays; if a string fits the format ''/^(0|(-?[1-9][0-9]*))$/'' and is small enough (<php>PHP_INT_MIN</php> ≤ n ≤ <php>PHP_INT_MAX</php>), it is converted to an integer key. Such strings are termed //numeric strings//.
  
 The second of these, the //object//, is an ordered map of string property names to arbitrary values. Integer property names are not permitted, these are converted to string property names. Objects have some other attributes, but they do not concern us here. The second of these, the //object//, is an ordered map of string property names to arbitrary values. Integer property names are not permitted, these are converted to string property names. Objects have some other attributes, but they do not concern us here.
rfc/convert_numeric_keys_in_object_array_casts.txt · Last modified: 2017/11/30 14:50 by ajf

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