php equals (= =) and congruent (= = =)

<?php

Require_once ' person.php ';
Header ("Content-type:text/html;charset=utf-8");
$person 001=new person ("Wuxifu", 110);
$person 002=new person ("Wuxifu", 110);
$person 003= $person 001;
Congruent (= = =) Inference first to the same data type, the data type is False
(1) After the same data type, assume that the object (assuming that the same object is true no is false)
echo "<br/>person001 and person002 are not the same object case, not congruent *************<br/>";
if ($person 001=== $person 002)
{
echo "person001===person002 is the same object";
}else
{
echo "person001!==person002 is not the same object";

}
echo "<br/>person001 and person003 are the same object case, congruent **************<br/>";
if ($person 001=== $person 003)
{
echo "person001===person003 is the same object";
}else
{
echo "person001!==person003 is not the same object";

}
//(2) is the same data type, assuming an array (assuming the content is true no is false)
$array =array (110,120,130);
$array 2=array (110,120,130);
$array 3= $array;
echo "<br/><br/>array and array2 not the same array, but the same content, congruent *************<br/>";
if ($array = = = $array 2)
{
echo "Array===array2";
}else
{
echo "Array!==array2";
}
echo "<br/>array and Array3 not the same array, but the same content, congruent ************************<br/>";
if ($array = = = $array 3)
{
echo "Array===array3";
}else
{
echo "Array!==array3";
}
echo "<br/>array and Array3 not the same array, the content is not the same, not congruent ***********************<br/>";
$array 3[0]=0;
if ($array = = = $array 3)
{
echo "Array===array3";
}else
{
echo "Array!==array3";
}
echo "<br/>";
(3) is the same data type, assuming that there are four scalar types (boolean,integer,float,string), the same value is true no is false
echo "<br/> is the same data type, assuming that there are four scalar types (boolean,integer,float,string), the same value is true no is false<br/>";
$nums = 110;
$nums 2=120;
$nums 3=110;
if ($nums = = = $nums 2)
{
echo "Nums===nums2 value";
}else
{
echo "Nums!==nums2 value is not the same";

}
echo "<br/>";
if ($nums = = = $nums 3)
{
echo "Nums===nums3 value";
}else
{
echo "Nums!==nums3 value is not the same";

}
//(4) is not the same data type, or false
echo "<br/><br/> is not the same type of false not congruent ********************************<br/>";
if ($nums ===true)
{
echo "Nums===true";
}else
{
echo "Nums!==true";

}
echo "<br/>";
if ($person 001===true)
{
echo "Person001===true";
}else
{
echo "Person001!==true";

}

?>

*************************************************************

<?php
Require_once ' person.php ';
Header ("Content-type:text/html;charset=utf-8");
$person 001=new person ("Wuxifu", 110);
$person 002=new person ("Wuxifu", 110);
$person 003= $person 001;
//etc (= =) infer that the data type is the same first, not the same, assuming that the equals sign has a Boolean type and one side is converted to a Boolean type, otherwise the right side of the equal sign is cast to the data type on the left.
(1) After the same data type, assume that the object (just the content of two objects is true no is false)
echo "<br/>person001 and person002 are not the same object case, but the content is equal to *************<br/>";
if ($person 001== $person 002)
{
echo "person001==person002 content";
}else
{
echo "person001!=person002 content is not the same";

}
echo "<br/>person001 and person003 are the same object in the case (content same), etc. **************<br/>";
if ($person 001== $person 003)
{
echo "person001==person003 is the same object";
}else
{
echo "person001!=person003 is not the same object";

}
//(2) is the same data type, assuming an array (assuming the content is true no is false)
$array =array (110,120,130);
$array 2=array (110,120,130);
$array 3= $array;
echo "<br/><br/>array and array2 not the same array, but the same content, such as *************<br/>";
if ($array = = $array 2)
{
echo "Array==array2";
}else
{
echo "Array!=array2";
}
echo "<br/>array and Array3 not the same array, but the same content, such as ************************<br/>";
if ($array = = $array 3)
{
echo "Array==array3";
}else
{
echo "Array!=array3";
}
echo "<br/>array and Array3 not the same array, the content is not the same, unequal ***********************<br/>";
$array 3[0]=0;
if ($array = = $array 3)
{
echo "Array===array3";
}else
{
echo "Array!==array3";
}
echo "<br/>";
//(3) is the same data type, assuming that there are four scalar types (boolean,integer,float,string), the same value is true no is false
echo "<br/> is the same data type, assuming that there are four scalar types (boolean,integer,float,string), the same value is true no is false<br/>";
$nums = 110;
$nums 2=120;
$nums 3=110;
if ($nums = = $nums 2)
{
echo "Nums==nums2 value";
}else
{
echo "NUMS!==NUMS2 value is not the same";

}
echo "<br/>";
if ($nums = = $nums 3)
{
echo "Nums==nums3 value";
}else
{
echo "Nums!=nums3 value is not the same";

}
//(4) is not the same data type, assuming that there is a Boolean value on one side of the equals sign, then one side is converted to a Boolean type, otherwise the right side of the equal sign will be turned to the data type to the left of the equals sign
echo "<br/><br/> is not the same data type, assuming that there is a Boolean value on one side of the equals sign, then one side is converted to a Boolean type, otherwise the right side of the equal sign will be turned to the data type on the left side of the equals sign *************** <br/> ";
if ($nums ==true)
{
echo "Nums==true";
}else
{
echo "Nums!=true";

}
echo "<br/>";
if ($person 001==true)
{
echo "Person001==true";
}else
{
echo "Person001!=true";

}
echo "<br/>";
if (true== $nums)
{
echo "True==nums";
}else
{
echo "True!=nums";

}
echo "<br/>";
if (true== $person 001)
{
echo "true==person001";
}else
{
echo "true!=person001";

}
echo "<br/>";
if ($array = = $person 001)
{
echo "array==person001";
}else
{
echo "array!=person001";

}
echo "<br/>";
if ($array ==true)
{
echo "Array==true";
}else
{
echo "Array!=true";

}

?>

php equals (= =) and congruent (= = =)