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PHP
in_array()
The function checks whether a certain value exists in the array. If it exists, it returnsTRUE
, otherwise it returnsFALSE
.
Syntax:
bool in_array( mixed needle, array array [, bool strict] )
Parameter description:
Parameter | Description |
---|---|
needle | The value that needs to be searched in the array, if it is a string, it is case-sensitive |
array | Array to be retrieved |
strict | Optional, if set to TRUE, the value types in needle and array will also be checked |
Example:
Character a exists in $arr_a array Strictly checked example:
Character 1 in $ Example of array as needle does not exist in arr_a array:
array$arr_b
exists in$arr_a
array
PHP
in_array()
The function checks whether a certain value exists in the array. If it exists, it returnsTRUE
, otherwise it returnsFALSE
.
Syntax:
bool in_array( mixed needle, array array [, bool strict] )
Parameter description:
Parameter | Description |
---|---|
needle | The value that needs to be searched in the array, if it is a string, it is case-sensitive |
array | Array to be retrieved |
strict | Optional, if set to TRUE, the value types in needle and array will also be checked |
Example:
Character a exists in the $arr_a array Strictly checked example:
Character 1 in $ Example of array as needle does not exist in arr_a array:
array$arr_b
exists in$arr_a
array
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