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 ($arr), and the values in the array are exchanged with the key
PHP operation array functions. Ange ($ 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
Some php array learning notes. There are three types of php arrays: a numeric array with a numeric ID key, and an ID key in an array associated with a value multi-dimensional array containing one or more arrays, there are three types of php arrays:
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
Php operation array (merge, split, append, search, delete, etc ). 1. the array_merge () function combines the arrays and returns a Union array. The obtained array starts with the first input array parameter.
1. Merge arrays
The array_merge ()
This tutorial only describes two parts. One is to use the Array Function in_array to check whether a specified string exists in the array, and use the count function to determine the array length. Definition and usage
This tutorial only describes
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
During programming, I often forget the usage of some Arrays. I only remember that there is such a function. I don't know how to use it. now I use it as a manual.
During programming, I often forget the usage of some Arrays. I only remember that there
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
Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if
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