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<?php
/*
* YOURLS
* Compatibility functions when either missing from older PHP versions or not included by default
*/
// @codeCoverageIgnoreStart
/**
* json_encode for PHP, should someone run a distro without php-json -- see http://askubuntu.com/questions/361424/
*
*/
if( !function_exists( 'json_encode' ) ) {
function json_encode( $array ) {
return yourls_array_to_json( $array );
}
}
/**
* Converts an associative array of arbitrary depth and dimension into JSON representation. Used for compatibility with older PHP builds.
*
* @param array $array the array to convert.
* @return mixed The resulting JSON string, or false if the argument was not an array.
* @author Andy Rusterholz
* @link http://php.net/json_encode (see comments)
*/
function yourls_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 = yourls_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 = yourls_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;
}
/**
* BC Math functions (assuming if one doesn't exist, none does)
*
*/
if ( !function_exists( 'bcdiv' ) ) {
function bcdiv( $dividend, $divisor ) {
$quotient = floor( $dividend/$divisor );
return $quotient;
}
function bcmod( $dividend, $modulo ) {
$remainder = $dividend%$modulo;
return $remainder;
}
function bcmul( $left, $right ) {
return $left * $right;
}
function bcadd( $left, $right ) {
return $left + $right;
}
function bcpow( $base, $power ) {
return pow( $base, $power );
}
}
// @codeCoverageIgnoreEnd
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