However discouraged because if $arr already contains If $arr doesn't exist yet or is set to null or false, it will be created, so this isĪlso an alternative way to create an array. The key can also be omitted, resulting in an empty pair of This is done by assigning values to the array, specifying the Will be used as all others are overwritten.Ĭreating/modifying with square bracket syntaxĪn existing array can be modified by explicitly setting values If multiple elements in the array declaration use the same key, only the last one Arrays and objects can not be used as keys.ĭoing so will result in a warning: Illegal offset type.
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