Removal steps: 1. Use the foreach statement to loop through the array by reference, with the syntax "foreach ($arr as &$v){loop body statement block;}"; 2. In the loop body, use is_string () function determines whether the array element "$v" is of string type. If so, use the settype() function to set the element to another type. The syntax "if(is_string($v)){settype($v, "Specified type");}".
The operating environment of this tutorial: Windows 7 system, PHP version 8.1, DELL G3 computer
In PHP, the array value has double quotes. This is because the value is of string type. For example,
array(1,2,3,4,"5",6,7,"8",9)
only needs to convert the value type to other types (such as numeric type).
Steps to remove double quotes from array values:
Step 1: Use the foreach statement to loop through the array by reference
foreach ($array as &$value){ 循环体语句块; }
Traverse the given $array array and assign the value of the current array to $value in each loop.
Step 2: In the loop body, convert the string type array to other types
Use the is_string() function to determine the array elements Whether $value is a string type
If so, use the settype() function to set the element to another type
if(is_string($value)){ settype($value,"指定类型"); }
Complete implementation Code:
Description: The value of the second parameter of the settype() function can be set to:
"boolean" (or "bool", starting from PHP 4.2.0)
"integer" (or "int", starting from PHP 4.2.0)
"float" (only available after PHP 4.2.0, "double" used in older versions is now disabled)
"string"
"array"
"object"
"null" ( Starting from PHP 4.2.0)
For example, if the above code is set to settype($value,"boolean");
, the result will be:
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