diff --git a/ext/standard/tests/math/pow_variation1.phpt b/ext/standard/tests/math/pow_variation1.phpt
index a4283a4ac9464..cdb876f034ad8 100644
--- a/ext/standard/tests/math/pow_variation1.phpt
+++ b/ext/standard/tests/math/pow_variation1.phpt
@@ -8,164 +8,83 @@ if (PHP_INT_SIZE != 4) die("skip this test is for 32bit platform only");
 ?>
 --FILE--
 <?php
-echo "*** Testing pow() : usage variations ***\n";
 
-//get an unset variable
-$unset_var = 10;
-unset ($unset_var);
-
-// heredoc string
-$heredoc = <<<EOT
-abc
-xyz
-EOT;
-
-// get a class
 class classA
 {
 }
 
-// get a resource variable
+//resource variable
 $fp = fopen(__FILE__, "r");
 
-$inputs = array(
-       // int data
-/*1*/  0,
-       1,
-       12345,
-       -2345,
-       PHP_INT_MAX,
-
-       // float data
-/*6*/  10.5,
-       -10.5,
-       12.3456789000e10,
-       12.3456789000E-10,
-       .5,
-
-       // null data
-/*11*/ NULL,
-       null,
-
-       // boolean data
-/*13*/ true,
-       false,
-       TRUE,
-       FALSE,
-
-       // empty data
-/*17*/ "",
-       '',
-       array(),
-
-       // string data
-/*20*/ "abcxyz",
-       'abcxyz',
-       $heredoc,
-
-       // object data
-/*23*/ new classA(),
-
-       // undefined data
-/*24*/ @$undefined_var,
-
-       // unset data
-/*25*/ @$unset_var,
-
-       // resource variable
-/*26*/ $fp
-);
+$inputs = [
+    // int data
+    0,
+    1,
+    12345,
+    -2345,
+    PHP_INT_MAX,
+
+    // float data
+    10.5,
+    -10.5,
+    12.3456789e10,
+    12.3456789e-10,
+    0.5,
+
+    // null data
+    null,
+
+    // boolean data
+    true,
+    false,
+
+    // empty data
+    "",
+    [],
+
+    // string data
+    "abcxyz",
+    "5.5",
+    "2",
+    "6.3e-2",
+
+    // object data
+    new classA(),
+
+    // resource variable
+    $fp,
+];
 
 // loop through each element of $inputs to check the behaviour of pow()
-$iterator = 1;
-foreach($inputs as $input) {
-    echo "\n-- Iteration $iterator --\n";
+foreach ($inputs as $input) {
     try {
         var_dump(pow($input, 3));
     } catch (Error $e) {
         echo $e->getMessage(), "\n";
     }
-    $iterator++;
-};
+}
 fclose($fp);
+
 ?>
 --EXPECTF--
-*** Testing pow() : usage variations ***
-
--- Iteration 1 --
 int(0)
-
--- Iteration 2 --
 int(1)
-
--- Iteration 3 --
 float(1881365963625)
-
--- Iteration 4 --
 float(-12895213625)
-
--- Iteration 5 --
 float(9.903520300448E+27)
-
--- Iteration 6 --
 float(1157.625)
-
--- Iteration 7 --
 float(-1157.625)
-
--- Iteration 8 --
 float(1.881676371789%dE+33)
-
--- Iteration 9 --
 float(1.881676371789%dE-27)
-
--- Iteration 10 --
 float(0.125)
-
--- Iteration 11 --
 int(0)
-
--- Iteration 12 --
-int(0)
-
--- Iteration 13 --
-int(1)
-
--- Iteration 14 --
-int(0)
-
--- Iteration 15 --
 int(1)
-
--- Iteration 16 --
 int(0)
-
--- Iteration 17 --
 Unsupported operand types: string ** int
-
--- Iteration 18 --
-Unsupported operand types: string ** int
-
--- Iteration 19 --
 Unsupported operand types: array ** int
-
--- Iteration 20 --
-Unsupported operand types: string ** int
-
--- Iteration 21 --
 Unsupported operand types: string ** int
-
--- Iteration 22 --
-Unsupported operand types: string ** int
-
--- Iteration 23 --
+float(166.375)
+int(8)
+float(0.000250047)
 Unsupported operand types: classA ** int
-
--- Iteration 24 --
-int(0)
-
--- Iteration 25 --
-int(0)
-
--- Iteration 26 --
 Unsupported operand types: resource ** int
diff --git a/ext/standard/tests/math/pow_variation1_64bit.phpt b/ext/standard/tests/math/pow_variation1_64bit.phpt
index 5869e905f067c..debc8b16d2b03 100644
--- a/ext/standard/tests/math/pow_variation1_64bit.phpt
+++ b/ext/standard/tests/math/pow_variation1_64bit.phpt
@@ -8,164 +8,81 @@ if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only");
 ?>
 --FILE--
 <?php
-echo "*** Testing pow() : usage variations ***\n";
-
-//get an unset variable
-$unset_var = 10;
-unset ($unset_var);
-
-// heredoc string
-$heredoc = <<<EOT
-abc
-xyz
-EOT;
-
-// get a class
 class classA
 {
 }
 
-// get a resource variable
+// resource variable
 $fp = fopen(__FILE__, "r");
 
-$inputs = array(
-       // int data
-/*1*/  0,
-       1,
-       12345,
-       -2345,
-       PHP_INT_MAX,
-
-       // float data
-/*6*/  10.5,
-       -10.5,
-       12.3456789000e10,
-       12.3456789000E-10,
-       .5,
-
-       // null data
-/*11*/ NULL,
-       null,
-
-       // boolean data
-/*13*/ true,
-       false,
-       TRUE,
-       FALSE,
-
-       // empty data
-/*17*/ "",
-       '',
-       array(),
-
-       // string data
-/*20*/ "abcxyz",
-       'abcxyz',
-       $heredoc,
-
-       // object data
-/*23*/ new classA(),
-
-       // undefined data
-/*24*/ @$undefined_var,
-
-       // unset data
-/*25*/ @$unset_var,
-
-       // resource variable
-/*26*/ $fp
-);
+$inputs = [
+    // int data
+    0,
+    1,
+    12345,
+    -2345,
+    PHP_INT_MAX,
+
+    // float data
+    10.5,
+    -10.5,
+    12.3456789e10,
+    12.3456789e-10,
+    0.5,
+
+    // null data
+    null,
+
+    // boolean data
+    true,
+    false,
+
+    // empty data
+    "",
+    [],
+
+    // string data
+    "abcxyz",
+    "10.5",
+    "2",
+    "6.3e-2",
+
+    // object data
+    new classA(),
+
+    // resource variable
+    $fp,
+];
 
 // loop through each element of $inputs to check the behaviour of pow()
-$iterator = 1;
-foreach($inputs as $input) {
-    echo "\n-- Iteration $iterator --\n";
+foreach ($inputs as $input) {
     try {
         var_dump(pow($input, 3));
     } catch (Error $e) {
         echo $e->getMessage(), "\n";
     }
-    $iterator++;
-};
+}
 fclose($fp);
 ?>
 --EXPECT--
-*** Testing pow() : usage variations ***
-
--- Iteration 1 --
 int(0)
-
--- Iteration 2 --
 int(1)
-
--- Iteration 3 --
 int(1881365963625)
-
--- Iteration 4 --
 int(-12895213625)
-
--- Iteration 5 --
 float(7.846377169233351E+56)
-
--- Iteration 6 --
 float(1157.625)
-
--- Iteration 7 --
 float(-1157.625)
-
--- Iteration 8 --
 float(1.8816763717891549E+33)
-
--- Iteration 9 --
 float(1.8816763717891545E-27)
-
--- Iteration 10 --
 float(0.125)
-
--- Iteration 11 --
 int(0)
-
--- Iteration 12 --
-int(0)
-
--- Iteration 13 --
-int(1)
-
--- Iteration 14 --
-int(0)
-
--- Iteration 15 --
 int(1)
-
--- Iteration 16 --
 int(0)
-
--- Iteration 17 --
 Unsupported operand types: string ** int
-
--- Iteration 18 --
-Unsupported operand types: string ** int
-
--- Iteration 19 --
 Unsupported operand types: array ** int
-
--- Iteration 20 --
-Unsupported operand types: string ** int
-
--- Iteration 21 --
 Unsupported operand types: string ** int
-
--- Iteration 22 --
-Unsupported operand types: string ** int
-
--- Iteration 23 --
+float(1157.625)
+int(8)
+float(0.000250047)
 Unsupported operand types: classA ** int
-
--- Iteration 24 --
-int(0)
-
--- Iteration 25 --
-int(0)
-
--- Iteration 26 --
 Unsupported operand types: resource ** int
diff --git a/ext/standard/tests/math/pow_variation2.phpt b/ext/standard/tests/math/pow_variation2.phpt
index 9351dbd4ce738..47a4845faade4 100644
--- a/ext/standard/tests/math/pow_variation2.phpt
+++ b/ext/standard/tests/math/pow_variation2.phpt
@@ -4,164 +4,81 @@ Test pow() function : usage variations - different data types as $exp argument
 serialize_precision = 14
 --FILE--
 <?php
-echo "*** Testing pow() : usage variations ***\n";
-
-//get an unset variable
-$unset_var = 10;
-unset ($unset_var);
-
-// heredoc string
-$heredoc = <<<EOT
-abc
-xyz
-EOT;
-
-// get a class
 class classA
 {
 }
 
-// get a resource variable
+// resource variable
 $fp = fopen(__FILE__, "r");
 
-$inputs = array(
-       // int data
-/*1*/  0,
-       1,
-       12345,
-       -2345,
-       2147483647,
-
-       // float data
-/*6*/  2.5,
-       -2.5,
-       12.3456789000e10,
-       12.3456789000E-10,
-       .5,
-
-       // null data
-/*11*/ NULL,
-       null,
-
-       // boolean data
-/*13*/ true,
-       false,
-       TRUE,
-       FALSE,
-
-       // empty data
-/*17*/ "",
-       '',
-       array(),
-
-       // string data
-/*20*/ "abcxyz",
-       'abcxyz',
-       $heredoc,
-
-       // object data
-/*23*/ new classA(),
-
-       // undefined data
-/*24*/ @$undefined_var,
-
-       // unset data
-/*25*/ @$unset_var,
-
-       // resource variable
-/*26*/ $fp
-);
+$inputs = [
+    // int data
+    0,
+    1,
+    12345,
+    -2345,
+    PHP_INT_MAX,
+
+    // float data
+    2.5,
+    -2.5,
+    12.3456789e10,
+    12.3456789e-10,
+    0.5,
+
+    // null data
+    null,
+
+    // boolean data
+    true,
+    false,
+
+    // empty data
+    "",
+    [],
+
+    // string data
+    "abcxyz",
+    "5.5",
+    "2",
+    "6.3e-2",
+
+    // object data
+    new classA(),
+
+    // resource variable
+    $fp,
+];
 
 // loop through each element of $inputs to check the behaviour of pow()
-$iterator = 1;
-foreach($inputs as $input) {
-    echo "\n-- Iteration $iterator --\n";
+foreach ($inputs as $input) {
     try {
         var_dump(pow(20.3, $input));
     } catch (Error $e) {
         echo $e->getMessage(), "\n";
     }
-    $iterator++;
-};
+}
 fclose($fp);
 ?>
 --EXPECT--
-*** Testing pow() : usage variations ***
-
--- Iteration 1 --
 float(1)
-
--- Iteration 2 --
 float(20.3)
-
--- Iteration 3 --
 float(INF)
-
--- Iteration 4 --
 float(0)
-
--- Iteration 5 --
 float(INF)
-
--- Iteration 6 --
 float(1856.6929774279)
-
--- Iteration 7 --
 float(0.00053859200856424)
-
--- Iteration 8 --
 float(INF)
-
--- Iteration 9 --
 float(1.0000000037168)
-
--- Iteration 10 --
 float(4.5055521304275)
-
--- Iteration 11 --
 float(1)
-
--- Iteration 12 --
-float(1)
-
--- Iteration 13 --
-float(20.3)
-
--- Iteration 14 --
-float(1)
-
--- Iteration 15 --
 float(20.3)
-
--- Iteration 16 --
 float(1)
-
--- Iteration 17 --
 Unsupported operand types: float ** string
-
--- Iteration 18 --
-Unsupported operand types: float ** string
-
--- Iteration 19 --
 Unsupported operand types: float ** array
-
--- Iteration 20 --
-Unsupported operand types: float ** string
-
--- Iteration 21 --
 Unsupported operand types: float ** string
-
--- Iteration 22 --
-Unsupported operand types: float ** string
-
--- Iteration 23 --
+float(15532029.564086)
+float(412.09)
+float(1.2088495422866)
 Unsupported operand types: float ** classA
-
--- Iteration 24 --
-float(1)
-
--- Iteration 25 --
-float(1)
-
--- Iteration 26 --
 Unsupported operand types: float ** resource