basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key
PHP uses the In_array function to check if a value exists in the array
This article mainly introduces PHP using the In_array function to check if there is a value in the array, a more detailed analysis of the function of the In_array function,
PHP operation array functions. Ange ($ low, $ high), range ($ low, $ high, $ step); create an array of sequential values, for example, range () is) for example, range (a, z) each ($ array) returns the current element of the array in sequence, and
: This article mainly introduces php programming notes. if you are interested in PHP tutorials, please refer to them. Three methods for php to obtain POST data
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Ange ($low, $high), Range ($low, $high, $step);//Create an array of sequential values such as: Range (1,4) as (1,2,3,4) and range (' A ', ' Z ')
Each ($array) returns the current element of the array sequentially, and sets the next element to the
Ange ($low, $high), Range ($low, $high, $step);//Create an array of sequential values such as range (1,4) (1,2,3,4) and range (' A ', ' Z ')
Each ($array) returns the current element of the array sequentially and sets the next element to the
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