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I always thought that the memory size was the limit for the string length, but according to the PHP documentation: string can be as large as up to 2GB (2147483647 bytes maximum) There is also the maximum allowed memory size (memory_limit) for the PHP script, to consider. Testing: Do not perform this on a production server: You could always use the ...


The $tag is used as a key in an array, so it is converted to either a string or an integer. There is no maximum size for strings, the available memory is the only real restriction. The size of an integer depends on the platform: The size of an integer is platform-dependent, although a maximum value of about two billion is the usual value (that's 32 bits ...

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