PHP array processing function extract and example code

PHP Array processing function extract

The extract function is used to import variables from an array into the current symbol table

Basic syntax

int Extract (array & $var _array [, int $extract _type = extr_overwrite [, String $prefix = NULL]])

This function is used to import variables from the array into the current symbol table. Check each key name to see if it can be used as a valid variable name and also check for conflicts with the variable names already in the symbol table.

Parameter description:

return value

Returns the number of variables successfully imported into the symbol table.

Instance:

<?php$size = "large"; $var _array = Array (  "color" = "Blue",  "size" = "Medium",  "shape" = " Sphere "), Extract ($var _array, Extr_prefix_same," WDDX "), echo" $color, $size, $shape, $wddx _size <br/> ";? >

Operation Result:

Blue, large, sphere, medium

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