为什么 base64_encode 会失败?
Why should base64_encode fail?
Description
Encodes the given data with base64.
This encoding is designed to make binary data survive transport through transport layers that are not 8-bit clean, such as mail bodies.
Base64-encoded data takes about 33% more space than the original data.
Return Values
The encoded data, as a string or FALSE on failure.
上述 quote 摘自 PHP.net 声称该功能可能会失败。但是出于什么原因?
它说失败时可能 return false。一个例子是,如果你尝试像这样编码一个数组:
if(base64_encode([])){
echo "Encoded";
} else {
echo "Not encoded"; //It will execute this
}
简单,
如果您尝试编码的参数由于不是有效数据类型而无法编码,base64_encode()
将失败。我猜它会 return false
如果是的话。
例如:
$array = array('bla');
var_dump($array);
会失败并且 return 错误。它还会抛出一个 E_WARNING
用于传递无效参数。
Description
Encodes the given data with base64.
This encoding is designed to make binary data survive transport through transport layers that are not 8-bit clean, such as mail bodies.
Base64-encoded data takes about 33% more space than the original data.
Return Values
The encoded data, as a string or FALSE on failure.
上述 quote 摘自 PHP.net 声称该功能可能会失败。但是出于什么原因?
它说失败时可能 return false。一个例子是,如果你尝试像这样编码一个数组:
if(base64_encode([])){
echo "Encoded";
} else {
echo "Not encoded"; //It will execute this
}
简单,
如果您尝试编码的参数由于不是有效数据类型而无法编码,base64_encode()
将失败。我猜它会 return false
如果是的话。
例如:
$array = array('bla');
var_dump($array);
会失败并且 return 错误。它还会抛出一个 E_WARNING
用于传递无效参数。