Program code for converting arrays into json strings in PHP

Data conversion to js format data is a commonly used method for data transfer. Especially in ajax, it is often used to convert data into json and then back again. Let’s look at an example below.

The code is as follows

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代码如下

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function array_to_json($array) {
if (! is_array ( $array )) {
return false;
}

$associative = count ( array_diff ( array_keys ( $array ), array_keys ( array_keys ( $array ) ) ) );
if ($associative) {

$construct = array ();
foreach ( $array as $key => $value ) {

   // We first copy each key/value pair into a staging array,
   // formatting each key and value properly as we go.

   // Format the key:
   if (is_numeric ( $key )) {
    $key = "key_$key";
   }
   $key = """ . addslashes ( $key ) . """;

   // Format the value:
   if (is_array ( $value )) {
    $value = array_to_json ( $value );
   } else if (! is_numeric ( $value ) || is_string ( $value )) {
    $value = """ . addslashes ( $value ) . """;
   }

   // Add to staging array:
   $construct [] = "$key: $value";
}

// Then we collapse the staging array into the JSON form:
$result = "{" . implode ( ",", $construct ) . "}";

} else { // If the array is a vector (not associative):

$construct = array ();
foreach ( $array as $value ) {

   // Format the value:
   if (is_array ( $value )) {
    $value = array_to_json ( $value );
   } else if (! is_numeric ( $value ) || is_string ( $value )) {
    $value = """ . addslashes ( $value ) . """;
   }

   // Add to staging array:
   $construct [] = $value;
}

// Then we collapse the staging array into the JSON form:
$result = "[" . implode ( ", ", $construct ) . "]";
}

return $result;
}

function array_to_json($array) {
if (! is_array ( $array )) {
return false;
}

$associative = count ( array_diff ( array_keys ( $array ), array_keys ( array_keys ( $array ) ) ) );
if ($associative) {

$construct = array ();
foreach ( $array as $key => $value ) {

// We first copy each key/value pair into a staging array,
// formatting each key and value properly as we go.

// Format the key:
if (is_numeric ( $key )) {
$key = "key_$key";
}
$key = """ . addslashes ( $key ) . """;

// Format the value:
if (is_array ( $value )) {
$value = array_to_json ( $value );
} else if (! is_numeric ( $value ) || is_string ( $value )) {
$value = """ . addslashes ( $value ) . """;
}

// Add to staging array:
$construct [] = "$key: $value";
}

// Then we collapse the staging array into the JSON form:
$result = "{" . implode ( ",", $construct ) . "}";

} else { // If the array is a vector (not associative):

代码如下	复制代码
if($_GET['enews']=='ok'){ echo json_encode(array('a'=>'王进'));exit; } ?>

$construct = array ();
foreach ( $array as $value ) {

// Format the value:
if (is_array ( $value )) {
$value = array_to_json ( $value );
} else if (! is_numeric ( $value ) || is_string ( $value )) {
$value = """ . addslashes ( $value ) . """;
}

// Add to staging array:
$construct [] = $value;
}

// Then we collapse the staging array into the JSON form:
$result = "[" . implode ( ", ", $construct ) . "]";
}

return $result;
}

You can try this and then change json_encode to the above function to see if it works properly

The code is as follows

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if($_GET['enews']=='ok'){
echo json_encode(array('a'=>'Wang Jin'));exit;
}
?>