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Object serialization: Difference between revisions
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$serializedObj = serialize($myObj);
In order to unserialize the object, use the [http://www.php.net/manual/en/function.unserialize.php unserialize()] function. Note that the class of object must be defined in the script where unserialization takes place, or the class' methods will be lost.
=={{header|Python}}==▼
<pre>▼
# Object Serialization in Python▼
# serialization in python is accomplished via the Pickle module.▼
# Alternatively, one can use the cPickle module if speed is the key,▼
# everything else in this example remains the same.▼
import pickle▼
class Entity:▼
def __init__(self):▼
self.name = "Entity"▼
def printName(self):▼
print self.name▼
class Person(Entity): #OldMan inherits from Entity▼
def __init__(self): #override constructor▼
self.name = "Cletus" ▼
instance1 = Person()▼
instance1.printName()▼
instance2 = Entity()▼
instance2.printName()▼
target = file("objects.dat", "w") # open file▼
# Serialize▼
pickle.dump((instance1, instance2), target) # serialize `instance1` and `instance2`to `target`▼
target.close() # flush file stream▼
print "Serialized..."▼
# Unserialize▼
target = file("objects.dat") # load again▼
i1, i2 = pickle.load(target)▼
print "Unserialized..."▼
i1.printName()▼
i2.printName()▼
</pre>▼
=={{header|Ruby}}==
Line 274 ⟶ 315:
)
puts "END LOADED DIVERSE COLLECTION"
▲=={{header|Python}}==
▲<pre>
▲# Object Serialization in Python
▲# serialization in python is accomplished via the Pickle module.
▲# Alternatively, one can use the cPickle module if speed is the key,
▲# everything else in this example remains the same.
▲import pickle
▲class Entity:
▲ def __init__(self):
▲ self.name = "Entity"
▲ def printName(self):
▲ print self.name
▲class Person(Entity): #OldMan inherits from Entity
▲ def __init__(self): #override constructor
▲ self.name = "Cletus"
▲instance1 = Person()
▲instance1.printName()
▲instance2 = Entity()
▲instance2.printName()
▲target = file("objects.dat", "w") # open file
▲# Serialize
▲pickle.dump((instance1, instance2), target) # serialize `instance1` and `instance2`to `target`
▲target.close() # flush file stream
▲print "Serialized..."
▲# Unserialize
▲target = file("objects.dat") # load again
▲i1, i2 = pickle.load(target)
▲print "Unserialized..."
▲i1.printName()
▲i2.printName()
▲</pre>
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